CN220988903U

CN220988903U - Ripu knife

Info

Publication number: CN220988903U
Application number: CN202322176662.1U
Authority: CN
Inventors: 庞美仙; 和丽媛; 李明; 和世元; 邵华; 和致远
Original assignee: Beijing Chuankang Pharmaceutical Technology Co ltd
Current assignee: Beijing Chuankang Pharmaceutical Technology Co ltd
Priority date: 2023-08-14
Filing date: 2023-08-14
Publication date: 2024-05-24
Anticipated expiration: 2033-08-14

Abstract

The embodiment of the utility model provides a sharp knife, which comprises: the tool comprises a tool handle, a tool bit, a main control board and a low-voltage power supply; the main control board is fixed in the cutter handle and is connected with the low-voltage power supply and the cutter head; the tool bit is fixed on the tool shank. The eplerian knife provided by the utility model has a simple and reliable structure, and can solve the problems of current Li Pudao electric leakage and smoke generation.

Description

Ripu knife

Technical Field

The utility model relates to the technical field of medical treatment, in particular to the field of medical equipment, and more particularly relates to a sharp knife.

Background

Li Pu knife is also called ultra-high frequency electric knife, which is a special technology developed in recent years and is specially used for minimally invasive diagnosis and treatment of cervical diseases. A high-frequency wave of 3.8 MHz is generated through the tip of the electrode, and after the electrode contacts the body, the high-frequency wave is absorbed by the impedance of the tissue, so that high heat is instantaneously generated.

The Li Pu knife adopts a directional radio frequency electric wave emission technology, radio frequency electric wave field in emitter local tissue, radio frequency energy directly excites liquid polar molecules in the tissue to generate plasma oscillation, molecular bonds are broken, a fine and minimally invasive cutting effect can be achieved at a low temperature (40-70 ℃), and a molecular wave vibration friction heat effect is used for stopping bleeding, tissue ablation and shrinkage.

The current common sharp knife adopts a high-frequency radio knife to lead to LOOP metal wires to be generated by electrode tips, impedance is generated by tissues at the moment of contacting body tissues, high heat is generated by absorbing electric waves, and moisture in cells is formed by Cheng Zhengqi waves to fulfill the purposes of various operations such as cutting, hemostasis and the like, but does not influence pathological examination of incision edge tissues. The traditional electrotome is characterized in that the impedance of the electrode is used for generating high heat due to the passing of current to achieve the purpose of operation, the output frequency is 0.3-1.0 MHz, the heat energy converted by the radio frequency electrotome is generated in the tissue, sine waves are generated by the radio frequency to vibrate the moisture in the cells, the generated heat is evaporated, the contacted cells are broken to separate the tissue, and the radio frequency emitter does not generate heat.

The existing common knife is mainly powered by a public power supply, when the common knife is used for performing operations such as cutting, hemostasis and the like, the risk of electric leakage exists in the knife head, the operation part of a patient is damaged by a light patient, and the life of the patient is endangered by a heavy patient. When the sharp knife is used for cutting, hemostasis and other operations, smoke is generated. And the generated smoke can block the vision of doctors and influence the doctors to continuously treat tissues at cervical lesions.

In the process of implementing the inventive concept, the inventor finds that at least the following problems exist in the related art: the Li Pu knife is at risk of electric leakage and can generate smoke to influence the operation.

Disclosure of Invention

In view of this, the technical problem to be solved by the present utility model is to provide Li Pudao with electric leakage and smoke generation.

The embodiment of the utility model provides a sharp knife, which comprises the following components: the tool comprises a tool handle, a tool bit, a main control board and a low-voltage power supply; the main control board is fixed in the cutter handle and is connected with the low-voltage power supply and the cutter head; the tool bit is fixed on the tool shank.

Li Pudao of the embodiment of the present utility model further includes: and the standby low-voltage power supply is connected with the main control board.

Li Pudao of the embodiment of the present utility model further includes: the air blowing port is fixed at the tail part of the cutter head and connected with an external air pump for blowing air to the cutter head.

Li Pudao of the embodiment of the present utility model further includes: the air suction port is fixed at the tail part of the cutter head and connected with an external air pump for sucking air to the cutter head.

Li Pudao of the embodiment of the present utility model further includes: and the miniature camera is fixed at the tail part of the tool bit and is connected with external imaging equipment.

Li Pudao of the embodiment of the present utility model further includes: and the illuminating lamp is used for fixing the joint of the cutter handle and the cutter head.

The Li Pu knife provided by the embodiment of the utility model comprises a cutting part and a fixed handle, wherein the cutting part is fixed on the fixed handle, the cutting part is in buckle connection with the fixed handle, and the cutting part is connected with the main control board.

According to the Li Pu knife provided by the embodiment of the utility model, the connecting angle between the cutting part and the fixed handle is 140 degrees.

The Li Pu knife according to the embodiment of the present utility model, the cutting portion includes: blade-like cutting wires, and ring-like cutting wires.

According to the Li Pu knife provided by the embodiment of the utility model, the fixed handle is of a telescopic structure.

According to the embodiment of the utility model, the sharp knife provided by the utility model has a simple and reliable structure, and can solve the problems of current Li Pudao electric leakage and smoke generation.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the scope of the utility model, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and, together with the description, serve to explain the principles of the utility model.

Fig. 1 is a schematic structural view of a lipping knife according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of an access backup power supply of a lipsticks knife according to an embodiment of the present utility model.

Fig. 3 is a schematic view of a portion of a sharp knife according to another embodiment of the present utility model.

Fig. 4 is a schematic view of a cutting portion of a sharp knife according to another embodiment of the present utility model.

Reference numerals illustrate:

100 knife handle 200 knife head

300 Master control board 400 low-voltage power supply

500 Spare low-voltage power supply 600 air-blowing port

700 Air suction port 800 miniature camera

900 Lighting lamp

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the spirit of the present disclosure will be clearly described in the following drawings and detailed description, and any person skilled in the art, after having appreciated the embodiments of the present disclosure, may make alterations and modifications by the techniques taught by the present disclosure without departing from the spirit and scope of the present disclosure.

The exemplary embodiments of the present utility model and the descriptions thereof are intended to illustrate the present utility model, but not to limit the present utility model. In addition, the same or similar reference numerals are used for the same or similar parts in the drawings and the embodiments.

The terms "first," "second," …, etc. as used herein do not denote a particular order or sequence, nor are they intended to limit the utility model, but rather are merely used to distinguish one element or operation from another in the same technical term.

With respect to directional terms used herein, for example: upper, lower, left, right, front or rear, etc., are merely references to the directions of the drawings. Thus, directional terminology is used for purposes of illustration and is not intended to be limiting.

As used herein, the terms "comprising," "including," "having," "containing," and the like are intended to be inclusive and mean an inclusion, but not limited to.

As used herein, "and/or" includes any or all combinations of such things.

Reference herein to "a plurality" includes "two" and "more than two"; the term "plurality of sets" as used herein includes "two sets" and "more than two sets".

The terms "about," "approximately" and the like as used herein are used to modify any quantitative or positional deviation that could vary slightly without such slight variation or positional deviation altering its nature. In general, the range of slight variations or errors modified by such terms may be 20% in some embodiments, 10% in some embodiments, 5% in some embodiments, or other values. It should be understood by those skilled in the art that the above mentioned values can be adjusted according to the actual requirements, and are not limited thereto.

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It should be noted that the terms used herein should be construed to have meanings consistent with the context of the present specification and should not be construed in an idealized or overly formal manner.

Where a convention analogous to "at least one of A, B and C, etc." is used, in general such a convention should be interpreted in accordance with the meaning of one of skill in the art having generally understood the convention (e.g., "a system having at least one of A, B and C" would include, but not be limited to, systems having a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.). Where a formulation similar to at least one of "A, B or C, etc." is used, in general such a formulation should be interpreted in accordance with the ordinary understanding of one skilled in the art (e.g. "a system with at least one of A, B or C" would include but not be limited to systems with a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.). It should also be appreciated by those skilled in the art that virtually any disjunctive word and/or phrase presenting two or more alternative items, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the items, either of the items, or both. For example, the phrase "a or B" should be understood to include the possibility of "a" or "B", or "a and B".

Referring to fig. 1, a Li Pu knife according to an embodiment of the present utility model may include: a tool shank 100, a tool bit 200, a main control board 300 and a low voltage power supply 400. The main control board 300 is fixed inside the tool shank 100, and the main control board 300 is connected to the low-voltage power supply 400 and the tool bit 200; the tool bit 200 is secured to the tool shank 100. The main control board 300 is electrically connected to the tool bit 200, and provides ultra-high frequency electric wave driving for the tool bit 200. Since the power source 400 is different from that of the conventional common blade, the blade 200 does not cause direct injury to the human body even if it is leaked when it contacts the liquid. Under the condition that the low-voltage power supply 400 supplies energy, the main control board 300 can adjust the voltage to the required voltage through an internal boosting module, and the oscillation source is excited by the high-voltage low-current. The low voltage power supply in this embodiment may use a 2.5V battery, which may be a rechargeable battery or a dry cell, and the battery may be integrated into the interior of the handle 100 during implementation. The battery provides electric energy for the main control board 300, the main control board 300 boosts the low voltage power supply into working voltage in the knife handle 100, and then excites the vibration source with the working voltage to conduct ultra-high frequency (microwave) wave of 3.8 megahertz generated by the vibration source to the knife head 200. The physician can minimize the potential for electric shock to the patient or physician after assembling the eplercanier. Because the boost unit (typically a boost circuit in combination with a high voltage package) inside the main control board 300 is inside the tool shank 100, whether the tool shank is made of insulating rubber, plastic, or conductive material, it is possible to inhibit the human body from entering the electrical circuit of the boost unit.

Referring to fig. 2, li Pudao of an embodiment of the present utility model may further include: standby low voltage power supply 500. The standby power supply 500 is connected to the main control board 300. When the power supply 400 is depleted or damaged, the backup power supply 500 may continue to power the riving knife. The standby power supply 500 may be directly electrically connected to the tool shank in the form of a plug, which provides a connection plug with the connection wire as a female connector, and the tool shank provides a male socket at the tail part, and the male socket is electrically connected to the main control board 300 inside the tool shank. The Li Pu knife is in the use, and is usually great to the operating mode that is difficult to cut, if meet the card sword and the condition that the power energy is depleted in the cutting process, the doctor can take out reserve low-voltage power supply 500 rapidly, pegging graft it to handle of a knife department, reserve low-voltage power supply can continue to supply power for main control board 300 like this, and the doctor can get back to operating condition and continue the operation rapidly.

Referring to fig. 3, li Pudao of an embodiment of the present utility model may further include: the blow port 600. The air blowing port 600 is fixed at the rear of the cutter head 200 and connected to an external air pump for blowing air to the cutter head 200. The air blowing port 600 is fixed below the tail of the cutter head 200, and is used for blowing air to the cutter head 200 and blowing the smoke generated by cutting and operation out of the working area. The blow port 600 is positioned closest to the cutting area where the blade touches. When the cutter head cuts organic tissues, high temperature can be excited in the organic matters, and the high temperature rapidly dehydrates and carbonizes the cut part, so that smoke can be generated. The smoke is sprayed out along with the working area, and the smoke has an immediate effect on the working area of a doctor. The air blowing port 600 is used for introducing the sterilizing air or nitrogen gas introduced by the external air pump into the working area, on one hand, the oxygen content is increased for the cutting part of the cutter head by introducing the sterilizing air outside, so that the organic tissues are carbonized more fully, and the fully carbonized organic matters are not produced into particles with shielding effect; on the other hand, the introduction of large-volume sterilizing air or nitrogen outside can push generated smoke out of the working area, so that the ratio of the smoke in the cutting area is diluted, and the shielding effect is reduced; in addition, when the working area is in a closed space, such as the abdominal cavity of a human body, the working area is directly enlarged by introducing external sterilizing air or nitrogen, a larger visual field space can be expanded for the work of doctors, and the generation of supporting stress points can not be caused. In addition, the introduction of external sterilizing air or nitrogen can also prevent external air from entering the patient, so as to prevent harmful substances such as bacteria, dust and the like in the air from entering the patient, and cause wound infection.

Referring to fig. 3, li Pudao of an embodiment of the present utility model may further include: the suction port 700. The suction port 700 is fixed to the rear of the cutter head 200 and connected to an external air pump for sucking air into the cutter head 200. The air blowing port is fixed above the tail part of the cutter head 200 and is used for sucking the smoke generated by cutting and operation out of the cutting and operation working area. The suction port 700 is positioned so that the cutter head touches the rear upper side of the cutting area. When the cutter head cuts organic tissues, high temperature can be excited in the organic matters, and the high temperature rapidly dehydrates and carbonizes the cut part, so that smoke can be generated. The smoke will drift upward and rearward with the work area, creating an immediate impact on the physician's work area. The suction port is used for guiding negative pressure generated by the external air pump into the working area, on one hand, the introduction of the external negative pressure can guide the trend of airflow near the cutter head, and carbonized organic matters can be guided out of the working area along with the airflow, namely particles with shielding effect can not influence the sight of doctors any more; on the other hand, the external negative pressure is introduced, so that a doctor can conveniently suck tissue fluid, blood and other body fluids generated by the tissue rupture of a patient out of the working area. When a doctor needs to suck body fluid such as tissue fluid and blood generated by tissue rupture out of the working area, the doctor only needs to turn over the cutter head and contact the body fluid area by using the air suction port 700 at the back position of the cutter, so that the redundant body fluid can be guided out of the working area.

In the embodiment Li Pudao of the present utility model, the air blowing port 600 and the air suction port 700 are integrated near the connection between the tool bit and the tool shank, but the air flow rate of the air blowing port 600 is greater than the flow rate capacity of the air suction port 700. In this case, the sterile gas supplied from the gas outlet 600 may flush the smoke and be carried by the lower and upper sides into the air flow range of the gas inlet 700, thereby more thoroughly guiding the generated smoke out of the working area.

Li Pudao of the embodiment of the present utility model further includes: miniature camera 800. The micro camera 800 is fixed at the tail of the cutter head 200 and connected to an external imaging device. For the inconvenient observation position, the micro camera 800 transmits the captured image to the outside, thereby facilitating the operation of doctors. Under many working conditions, the working area of the Li Pu knife is relatively narrow and is inconvenient for the intervention of the endoscope. In this case, the micro camera 800 is directly fixed to the tail of the tool bit 200, so that the technical problem can be solved. The region of the miniature camera 800 where the image is collected is directed towards the position of the tool bit, and the image in the field of view can be presented by an external imaging device, and in a specific implementation procedure, a technician can select a wired or wireless communication mode to connect the miniature camera 800 with the imaging device. Here, the power supply of the miniature camera can supply power through external imaging equipment at low voltage, and can also supply power through a jumper wire of the main control board 300 in the Li Pu knife.

Li Pudao of the embodiment of the present utility model may further include: the lamp 900. The illuminating lamp 900 fixes the junction of the tool shank 100 and the tool bit 200. For poorly illuminated parts, the lamp 900 may provide illumination to it, and in particular implementations may use LED beads embedded in the shank 100. The LED lamp bead can be in an SMD packaging mode, is small in size and high in power, and can meet the lighting requirement of a narrow space. The LED lamp beads can be directly powered through the main control board 300.

In the Li Pu knife according to the embodiment of the present utility model, the knife head 200 includes a cutting portion and a fixing handle, the cutting portion is fixed on the fixing handle, the cutting portion is connected with the fixing handle by a buckle, and the cutting portion is connected with the main control board 300. The cutting portion of Li Pu knife is usually an electric wire, which is consumed with the corrosion of organic matter after multiple uses until deformation is disabled. The cutting part of the sharp knife is split with the fixed handle, and the cutting part and the fixed handle are connected through a buckle. Due to the split design, after the cutting part is worn, a new cutting part can be additionally connected for continuous use.

According to the Li Pu knife provided by the embodiment of the utility model, the connecting angle between the cutting part and the fixed handle is 140 degrees. Li Pu knife requires a physician to hold it in the hand when in use. In the operation process, a part of vision is yielded by the common knife, so that a doctor can conveniently operate in a fixed handheld position. Moreover, due to the skeleton structure of the wrist of a person, if the position of the cutter head is required to be positioned at the extension line of the forearm, the pressure of the common straight cutter on the wrist and the radius joint is larger. Li Pudao in this embodiment, there is 140 contained angles between the cutting portion and the fixed handle, so that the physician is on the forearm extension line when holding the handle. The doctor can perform the operation for a long time more accurately, naturally and conveniently.

The Li Pu knife according to the embodiment of the present utility model, the cutting portion includes: blade-like cutting wires and ring-like cutting wires. When a doctor resects strip-shaped, dot-shaped or other regular affected tissues, an annular cutting wire is usually used, but in the actual operation process, the shape of the affected tissues and wounds is not regular, and the doctor is required to cut the tissue secondarily. The common annular cutting wire has low fitting degree to irregular target areas, and can cause secondary damage to normal tissues beside the irregular target areas. The blade-shaped cutting wire provided by the embodiment of the utility model can provide a better cutting path and a better cutting wound surface for the working area of the blade-shaped cutting wire. Fig. 4 is a schematic view of a cutting portion of a sharp knife according to another embodiment of the present utility model, and the blade-shaped cutting wire as described above with reference to fig. 4 is composed of a blade-shaped liner and a cutting wire. The blade-shaped lining consists of a quartz plate, the appearance is of a surgical blade shape, and the edge of the blade-shaped lining is provided with a groove. The cutting wire is positioned inside the groove and surrounds the blade edge of the blade-shaped lining formed by the quartz sheet, and does not pass through the blade back. The cutting wires are directly and electrically connected to the main control board 300 and receive electromagnetic excitation. The cutting wire can be used for cutting a target by a blade after being excited, the rear quartz plate of the cutting wire can directly support the working shape of the cutting wire, the cutting wire can form a punctiform and irregular target area on an affected part, the blade-shaped cutting wire can realize hard contact, and the effect of small-area cutting is easy to achieve.

According to the Li Pu knife provided by the embodiment of the utility model, the fixed handle is of a telescopic structure. The fixation handle may be lengthened or shortened to accommodate the operative field during surgery. For a long and narrow region where the Li Pu knife works, the fixing handle of the embodiment can adapt to working condition requirements, and the fixing handle is lengthened to a proper length to implement a difficult-to-reach working region. The fixed handle is used as a supporting part for clamping the cutting part, on one hand, the fixed handle does not directly participate in cutting work, and is in a telescopic form, and is composed of two concentric steel pipes and a locking mechanism. Two concentric steel pipes are nested, and the end parts of the outer concentric pipes are fixed with locking mechanisms. When the inner concentric tube is withdrawn, it can be secured by a locking mechanism. In this way, the cut-out of the inner concentric tube is fixed to the further operating space.

Those skilled in the art will appreciate that the features recited in the various embodiments of the utility model and/or in the claims may be combined in various combinations and/or combinations, even if such combinations or combinations are not explicitly recited in the utility model. In particular, the features recited in the various embodiments of the utility model and/or in the claims can be combined in various combinations and/or combinations without departing from the spirit and teachings of the utility model. All such combinations and/or combinations fall within the scope of the utility model.

The embodiments of the present utility model are described above. These examples are for illustrative purposes only and are not intended to limit the scope of the present utility model. Although the embodiments are described above separately, this does not mean that the measures in the embodiments cannot be used advantageously in combination. The scope of the utility model is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be made by those skilled in the art without departing from the scope of the utility model, and such alternatives and modifications are intended to fall within the scope of the utility model.

Claims

1. A sharp knife, comprising: the tool comprises a tool handle (100), a tool bit (200), a main control board (300) and a low-voltage power supply (400);

The main control board (300) is fixed in the knife handle (100) and is connected with the low-voltage power supply (400) and the knife head (200);

The tool bit (200) is fixed to the tool shank (100).

2. The Li Pudao as defined in claim 1, wherein the sharp knife further comprises: and the standby low-voltage power supply (500) is connected to the main control board.

3. The Li Pudao as defined in claim 1, wherein the sharp knife further comprises: and the air blowing port (600) is fixed at the tail part of the cutter head and connected with an external air pump for blowing air to the cutter head.

4. The Li Pudao as defined in claim 1, wherein the sharp knife further comprises: and the air suction port (700) is fixed at the tail part of the cutter head and connected with an external air pump for sucking air from the cutter head.

5. The Li Pudao as defined in claim 1, wherein the sharp knife further comprises: and the miniature camera (800) is fixed at the tail part of the cutter head and is connected with external imaging equipment.

6. The Li Pudao as defined in claim 1, wherein the sharp knife further comprises: and the illuminating lamp (900) is fixed at the joint of the cutter handle (100) and the cutter head (200).

7. The Li Pudao of claim 1, wherein the tool bit (200) includes a cutting portion (210) and a fixed handle (220), the cutting portion (210) is fixed to the fixed handle (220), the cutting portion (210) is in a snap connection with the fixed handle (220), and the cutting portion (210) is connected with the main control board (300).

8. The Li Pudao according to claim 7, wherein the angle of attachment of the cutting portion (210) to the fixed handle (220) is 140 °.

9. The Li Pudao as defined in claim 7, wherein the cutting portion includes: blade-like cutting wires and ring-like cutting wires.

10. The Li Pudao of claim 7, wherein said fixed handle is of a telescoping construction.