CN107928752A - Ultrasonic surgical blades with disposable cutter head - Google Patents

Abstract

The invention provides a surgical ultrasonic scalpel with a disposable cutter head, comprising: an ultrasonic drive handle; a cutter head with a connecting thread structure at its tail for connecting with the ultrasonic drive handle; a cutter head sheath, fixed by The connection structure is sheathed on the outside of the cutter head; an anti-recovery component is arranged on 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. The cutter head sheath, cutter head and manual switch are composed of a one-time use component, which is convenient and quick to use. It can be used only by connecting the cutter head and the ultrasonic drive handle, and an anti-recycling component is set, and the cutter head and the cutter head The front end of the sheath is covered, not only to prevent repeated use, but also to quickly cover the cutter head to avoid damage to the cutter head.

Description

Surgical Ultrasonic Scalpel with Disposable Tips

technical field

The invention relates to the technical field of medical instruments, in particular to a surgical ultrasonic knife with a disposable knife head.

Background technique

At present, in surgical operations, ultrasonic scalpels are more and more widely used. At present, in surgical operations, the application of ultrasonic surgical instruments is becoming more and more extensive. Then, existing ultrasonic surgical instruments have some defects and deficiencies in their structures.

Among them, in many surgical operations (such as orthopedic surgery, neurosurgery), the cutter head of the ultrasonic scalpel needs to directly enter the patient's body for surgical operations. The existing ultrasonic surgical knives are often reused. High-standard disinfection consumes extra manpower and physics, and increases the operating cost of the hospital; secondly, reusable knives may cause surgical infection or infectious diseases, posing safety hazards.

In addition, after the existing cutter head is connected to the ultrasonic drive handle, the cutter head part is equipped with a cutter head sheath, which is used to protect the non-active part of the cutter head in the waveguide section, and the sheath is also fixed on the handle at the same time Yes, because doctors are not familiar with the installation and use of instruments, or are negligent, they may mistake the installation sequence, install the knife head sheath first, and forget to install the knife head.

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 cutter head, which consists of a cutter head sheath, a cutter head and a manual switch as a disposable assembly, which is convenient and quick to use, and only needs to connect the cutter The head and the ultrasonic drive handle can be used, and the anti-recovery component is set to cover the front end of the cutter head and the cutter head sheath after use, which can not only prevent repeated use, but also quickly cover the cutter head to avoid damage to the cutter head.

For reaching above-mentioned purpose, the concrete technical scheme that the present invention adopts is:

Surgical Ultrasonic Knife with Disposable Tips, including:

an ultrasonically driven handle;

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

A cutter head sheath is sheathed on the outside of the cutter head through a fixed connection structure;

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

Further, the cutter head and the cutter head sheath are made of medical stainless steel.

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

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

Further, a switch assembly is also included.

Further, the switch assembly includes a switch button arranged on the cutter head 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 arranged 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 The host drives or stops the ultrasonic drive handle according to the switch signal.

Further, the anti-recycling component includes:

A cover body sleeved on the front part of the cutter head sheath has a front fixing groove inside the front end;

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

A spring sleeved on the outside of the cutter head sheath, 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 has a hook-shaped part, and the outer wall of the cutter head sheath forms a limiting annular protrusion, and the hook-shaped part and the limiting annular protrusion form a destructive limiting assembly;

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, which is in a compressed state when the destructive limiting assembly is in a buckled state.

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

By adopting the above technical scheme, the cutter head sheath, the cutter head and the manual switch part are connected as a whole. When in use, the screw thread at the tail of the cutter head is connected to the ultrasonic drive handle, which can be used for one-time use in the operation. 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 methods and disinfection environments, and saves manpower and material resources. In addition, by involving the anti-recovery device, after one use, the front end of the knife head is covered by the cover body, so that it is difficult to directly recover the ultrasonic surgical knife head and avoid repeated use by criminals.

Description of drawings

Fig. 1 is a schematic structural diagram of a surgical ultrasonic knife with a disposable knife head in an embodiment of the present invention.

Detailed ways

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

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

The cutter head 1 has a connecting thread structure at its tail, which is used to connect with the ultrasonic driving handle 2;

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

The anti-recycling component is arranged on 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 cutter head 1 and the cutter head sheath 3 are made of medical stainless steel, such as 304 stainless steel.

In this embodiment, the cutter head 1 and the cutter head sheath 3 are fixedly connected by at least a pin 4 and a pin-hole connection structure, wherein the pin 4 includes a metal inner core and a silicone shock-absorbing sleeve wrapped around the metal inner core; the pin hole is formed at the same time 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, it includes a switch assembly 5. The switch assembly 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 arranged on the cutter head sheath and a wireless signal transmitter. The wireless signal transmitter receives the switch signal of the switch button and transmits the switch signal to a host, and the host drives according to the switch signal. Or stop the ultrasonic drive handle.

Anti-recycling components include:

The cover body 6 sleeved on the front part of the cutter head sheath 3 has a front fixing groove inside the front end;

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

A spring 8 sleeved outside the cutter head sheath 3, 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, and the hook-shaped component 9 and the limiting annular protrusion 10 form a destructive limiting assembly;

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 assembly is in a buckled state, the spring 8 is in a compressed state.

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

By adopting the above technical scheme, the cutter head sheath, the cutter head and the manual switch part are connected as a whole. When in use, the screw thread at the tail of the cutter head is connected to the ultrasonic drive handle, which can be used for one-time use in the operation. The connection method Convenient.

Due to the one-time design, repeated disinfection is not required, which reduces the hospital's requirements for disinfection methods and disinfection environments, and saves manpower and material resources. In addition, by involving the anti-recovery device, after one use, the front end of the knife head is covered by the cover body, so that it is difficult to directly recover the ultrasonic surgical knife head and avoid repeated use by criminals.

Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Claims (10)

1. The surgical ultrasonic scalpel with disposable cutter head, is characterized in that, comprises: an ultrasonically driven handle; A cutter head, the tail of which has a connecting thread structure for connecting with the ultrasonic driving handle; A cutter head sheath is sheathed on the outside of the cutter head through a fixed connection structure; An anti-recycling component is arranged on the cutter head and the front end of the cutter head sheath, and is used to cover the front end of the cutter head after use. 2. The ultrasonic surgical scalpel with a disposable cutter head as claimed in claim 1, wherein the cutter head and the cutter head sheath are made of medical stainless steel. 3. The ultrasonic scalpel for surgical operations with a disposable cutter head as claimed in claim 1, wherein the cutter head and the cutter head sheath are fixedly connected by at least one pin and a pin-hole connection structure, wherein the pin It includes a metal inner core and a silicone shock-absorbing sleeve wrapping the metal inner core; the pin holes are simultaneously formed on the cutter head and the cutter head sheath. 4. The ultrasonic surgical scalpel with a disposable cutter head according to claim 1, wherein the cutter head and the cutter head sheath are fixedly connected by at least one spline connection structure. 5. The ultrasonic surgical knife with a disposable cutting head as claimed in claim 1, further comprising a switch assembly. 6. The ultrasonic scalpel for surgical operations with a disposable cutter head as claimed in claim 5, wherein the switch assembly includes a switch button arranged on the cutter head sheath, a conductive slip ring and a connecting place A connection cable between the switch button and the conductive slip ring. 7. The ultrasonic scalpel for surgical operations with a disposable cutter head as claimed in claim 6, wherein the switch assembly includes a switch button and a wireless signal transmitter that are arranged on the cutter head sheath, and the The wireless signal transmitter receives the switch signal of the switch button, and transmits the switch signal to a host, and the host drives or stops the ultrasonic driving handle according to the switch signal. 8. The ultrasonic scalpel for surgical operations with a disposable cutter head as claimed in claim 1, wherein the anti-recovery assembly comprises: A cover body sleeved on the front part of the cutter head sheath has a front fixing groove inside the front end; a protrusion formed on the outer wall of the cutter head sheath, the protrusion has a rear fixing groove; A spring sleeved on the outside of the cutter head sheath, 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 has a hook-shaped part, and the outer wall of the cutter head sheath forms a limiting annular protrusion, and the hook-shaped part and the limiting annular protrusion form a destructive limiting assembly; 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. 9. The ultrasonic scalpel for surgical operations with a disposable cutter head as claimed in claim 8, wherein the spring is a compression spring, and when the destructive limiting assembly is in a buckled state, the spring is in compression state. 10. The ultrasonic scalpel for surgical operations with a disposable cutter head as claimed in claim 9, wherein when the destructive limiting assembly is destroyed to release the limiting, under the elastic force of the spring, the cover body Slide to the front end of the cutter head to cover the front end of the cutter head until the guide rod stops contacting with the rear end of the guide groove.