CN107928752B - Surgical ultrasonic knife with disposable knife head - Google Patents

Abstract

The invention provides an ultrasonic surgical blade with a disposable blade, comprising: an ultrasonic drive handle; the tail part of the cutter head is provided with a connecting thread structure and is used for being connected with the ultrasonic driving handle; the cutter head sheath is sleeved outside the cutter head through a fixed connection structure; the recovery prevention assembly is arranged at the front ends of the cutter head and the cutter head sheath and is used for covering the front ends of the cutter head after use. The tool bit sheath, the tool bit and the manual switch are formed into the disposable assembly, the use is convenient and quick, the tool bit can be used only by connecting the tool bit with an ultrasonic driving handle, the recovery prevention assembly is arranged, the front ends of the tool bit and the tool bit sheath are covered after the use, the repeated use can be prevented, the tool bit can be shielded rapidly, and the damage to the tool bit is avoided.

Description

Surgical ultrasonic scalpel with disposable blade

Technical field

The invention relates to the technical field of medical devices, and in particular to a surgical ultrasonic scalpel with a disposable blade.

Background technique

Currently, ultrasonic scalpels are used more and more widely in surgical operations. Currently, ultrasonic surgical instruments are increasingly used in surgical operations. However, existing ultrasonic surgical instruments have some defects and shortcomings in their structures.

Among them, in many surgical operations (such as orthopedic surgery and neurosurgery), the blade of the ultrasonic scalpel needs to be directly inserted into the patient's body for surgical operations. Existing ultrasonic surgical blades are often reused, which requires extraordinary operations. High-standard disinfection consumes extra manpower and physical resources, and increases the hospital's operating costs; secondly, reused knives may cause surgical infections or infectious diseases, posing safety risks.

In addition, after the existing cutter head is connected to the ultrasonic drive handle, a cutter head sheath is installed on the cutter head to protect the non-active part of the cutter head in the waveguide section. The sheath is also fixed on the handle. Yes, because the doctor is not familiar with the installation and use of the instrument, or is careless, he may make a mistake in the installation sequence and install the blade sheath first and forget to install the blade.

Contents of the invention

In view of the above problems, the object of the present invention is to provide a surgical ultrasonic scalpel with a disposable blade. The blade sheath, the blade and the manual switch are composed of a disposable component. It is easy and quick to use and only needs to connect the blade. The head and ultrasonic drive handle are ready for use, and are equipped with an anti-recycling component. After use, the front end of the cutter head and cutter head sheath is covered, which not only prevents reuse, but also quickly covers the cutter head to avoid damage to the cutter head.

In order to achieve the above objects, the specific technical solutions adopted by the present invention are:

Ultrasonic surgical scalpel with disposable blade, including:

an ultrasonic drive handle;

A cutter head, the tail of which has a connecting thread structure for connecting with the ultrasonic drive handle;

A cutter head sheath, which is sleeved on the outside of the cutter head through a fixed connection structure;

An anti-recycling component is provided at the front end of the cutter head and the cutter head sheath, and is used to cover the front end of the cutter head after use.

Furthermore, the material of the cutter head and the cutter head sheath is medical stainless steel.

Further, the cutter head and the cutter head sheath are fixedly connected through at least one pin and pin hole connection structure, wherein the pin includes a metal core and a silicone shock-absorbing sleeve wrapping the metal core; the pin hole It is formed on the cutter head and the cutter head sheath at the same time.

Furthermore, the cutter head and the cutter head sheath are fixedly connected through at least one spline connection structure.

Further, a switch component is included.

Further, the switch assembly includes a switch button provided on the blade sheath, a conductive slip ring, and a connection cable connecting the switch button and the conductive slip ring.

Further, the switch assembly includes a switch button and a wireless signal transmitter provided on the cutter head sheath. The wireless signal transmitter receives the switch signal of the switch button and transmits the switch signal to a host. The host drives or stops the ultrasonic drive handle according to the switch signal.

Further, the anti-recycling components include:

A cover body is set on the front part of the cutter head sheath, and the front end of the cover body has a front fixing groove inside;

A protrusion formed on the outer wall of the cutter head sheath, the protrusion having a rear fixing groove;

A spring is set on the outside of the cutter head sheath, and the two ends of the spring are respectively fixed in the front fixing groove and the rear fixing groove;

The rear end of the cover body has a hook-shaped component, and the outer wall of the cutter head sheath is formed with a limiting annular protrusion. The hook-shaped component and the limiting annular protrusion form a destructive limiting component;

At least one guide groove is formed on the side wall of the cover body, and at least one guide rod corresponding to the at least one guide groove is formed on the outer wall of the cutter head sheath.

Further, the spring is a compression spring, and when the destructive limiting component is in a buckled state, the spring is in a compressed state.

Further, when the destructive limiting component is destroyed and released, under the elastic force of the spring, the cover slides toward the front end of the cutter head to cover the front end of the cutter head until the guide rod contacts the rear end of the guide groove and stops. touch.

By adopting the above technical solution, the cutter head sheath, cutter head and manual switch component are connected as a whole. When in use, the thread at the tail of the cutter head is connected to the ultrasonic drive handle, which can be used once during surgery. The connection method It is convenient and fast. Due to the disposable design, repeated disinfection is not required, which reduces the hospital's requirements for disinfection means and disinfection environment, and saves manpower and material resources. In addition, by involving the anti-recycling device, after one use, the front end of the blade is covered by the cover body, making it difficult to directly recycle the ultrasonic surgical blade and preventing repeated use by criminals.

Description of drawings

Figure 1 is a schematic structural diagram of a surgical ultrasonic scalpel with a disposable blade in one embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

In one embodiment, a surgical ultrasonic scalpel with a disposable blade is provided, including:

The cutter head 1 has a connecting thread structure at its tail for connecting with the ultrasonic drive handle 2;

The cutter head sheath 3 is set on the outside of the cutter head 1 through a fixed connection structure;

The anti-recycling component is provided at the front end of the cutter head 1 and the cutter head sheath 3, and is used to cover the front end of the cutter head 1 after use.

Specifically, the material of the cutter head 1 and the cutter head sheath 3 is medical stainless steel, such as 304 stainless steel.

In this embodiment, the cutter head 1 and the cutter head sheath 3 are fixedly connected through at least a pin 4 and a pin hole connection structure. The pin 4 includes a metal core and a silicone shock-absorbing sleeve wrapping the metal core; the pin hole is also formed in The cutter head 1 and the cutter head sheath 3.

In other implementations, the cutter head and the cutter head sheath can also be fixedly connected through at least one spline connection structure.

In addition, a switch component 5 is included. The switch component 5 specifically includes a switch button arranged on the cutter head sheath 3, a conductive slip ring, and a connecting cable connecting the switch button and the conductive slip ring. The specific structure can refer to the existing ultrasonic scalpel.

In addition, the switch assembly also includes a switch button and a wireless signal transmitter provided on the cutter head sheath. The wireless signal transmitter receives the switch signal of the switch button and transmits the switch signal to a host. The host drives the switch according to the switch signal. Or stop the ultrasonic drive handle.

Anti-recycling components include:

The cover body 6 that is set on the front of the cutter head sheath 3 has a front fixing groove inside the front end;

The protrusion 7 formed on the outer wall of the cutter head sheath 3 has a rear fixing groove;

A spring 8 is set on the outside of the cutter head sheath 3, and the two ends of the spring 8 are respectively fixed in the front fixing groove and the rear fixing groove;

The rear end of the cover body 6 has a hook-shaped component 9, and the outer wall of the cutter head sheath 3 forms a limiting annular protrusion 10. The hook-shaped component 9 and the limiting annular protrusion 10 form a destructive limiting component;

At least one guide groove 11 is formed on the side wall of the cover body 6 , and at least one guide rod 12 corresponding to the at least one guide groove 11 is formed on the outer wall of the cutter head sheath 3 .

Wherein, the spring 8 is a compression spring, and when the destructive limiting component is in a buckled state, the spring 8 is in a compressed state.

When the destructive limiting component is destroyed and released, under the elastic force of the spring 8, the cover 6 slides toward the front end of the cutter head 1 to cover the front end of the cutter head 1 until the guide rod 12 and the rear of the guide groove 11 End contact stops contact.

By adopting the above technical solution, the cutter head sheath, cutter head and manual switch component are connected as a whole. When in use, the thread at the tail of the cutter head is connected to the ultrasonic drive handle, which can be used once during surgery. The connection method Convenient.

Due to the disposable design, there is no need for repeated disinfection, which reduces the hospital's requirements for disinfection means and disinfection environment, and saves manpower and material resources. In addition, by involving the anti-recycling device, after one use, the front end of the blade is covered by the cover body, making it difficult to directly recycle the ultrasonic surgical blade and preventing repeated use by criminals.

Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Claims (7)

1. A surgical ultrasonic blade having a disposable blade, comprising:

an ultrasonic drive handle;

the tail part of the cutter head is provided with a connecting thread structure and is used for being connected with the ultrasonic driving handle;

the cutter head sheath is sleeved outside the cutter head through a fixed connection structure;

the recovery prevention assembly is arranged at the front ends of the cutter head and the cutter head sheath and is used for covering the front ends of the cutter head after use;

the anti-recycling assembly includes:

the cover body is sleeved at the front part of the cutter head sheath, and a front fixing groove is formed in the front end of the cover body;

a protrusion formed on the outer wall of the bit sheath, the protrusion having a rear fixing groove;

the spring is sleeved outside the cutter head sheath, and two ends of the spring are respectively fixed in the front fixing groove and the rear fixing groove;

the rear end of the cover body is provided with a hook-shaped part, the outer wall of the cutter head sheath is provided with a limit annular bulge, and the hook-shaped part and the limit annular bulge form a destructive limit assembly;

the side wall of the cover body is provided with at least one guide groove, and the outer wall of the cutter head sheath is provided with at least one guide rod corresponding to the at least one guide groove;

the spring is a pressure spring, and when the destructive limiting assembly is in a buckling state, the spring is in a compression state;

when the destructive limiting assembly is destroyed and is released from limiting, the cover body slides towards the front end of the cutter head to cover the front end of the cutter head under the action of the elasticity of the spring until the guide rod is in contact with the rear end of the guide groove.

2. The ultrasonic surgical blade having a single-use blade of claim 1, wherein the blade and the blade sheath are made of medical stainless steel.

3. The ultrasonic surgical blade having a single-use blade of claim 1, wherein the blade and blade guard are fixedly connected by at least one pin and pin hole connection, wherein the pin comprises a metal core and a silicone damping sleeve surrounding the metal core; the pin holes are formed in the cutter head and the cutter head sheath at the same time.

4. The ultrasonic surgical blade having a single-use blade of claim 1, wherein the blade and blade guard are fixedly coupled by at least one spline connection.

5. The ultrasonic surgical blade having a single-use blade of claim 1, further comprising a switch assembly.

6. The ultrasonic surgical blade having a single-use blade of claim 5, wherein the switch assembly comprises a switch button disposed on the blade guard, an electrically conductive slip ring, and a connecting cable connecting the switch button and the electrically conductive slip ring.

7. The ultrasonic surgical blade having a single-use blade of claim 6, wherein the switch assembly comprises a switch button disposed on the blade guard and a wireless signal transmitter that receives a switch signal from the switch button and transmits the switch signal to a host computer that drives or stops the ultrasonic drive handle based on the switch signal.