WO2003099145A1

WO2003099145A1 - The surgical scalpel having a movable guard and the scalpel blade guard

Info

Publication number: WO2003099145A1
Application number: PCT/CN2003/000381
Authority: WO
Inventors: Yitian Qian; Yee Men Lo
Original assignee: Yitian Qian; Yee Men Lo
Priority date: 2002-05-27
Filing date: 2003-05-22
Publication date: 2003-12-04
Also published as: CN1446520A; AU2003242151A1; CN100403994C; CN1655727A; CN1382423A

Abstract

The present invention relates to a surgical scalpel having a movable guard. The said scalpel includes a blade, a guard and a handle. The said blade can be securely attached to the head of the said handle. The said guard is covered outside the said handle. The longitudinal and transverse slots provided inside the said guard can be respectively engaged with the longitudinal and transverse ribs of the said handle, thereof the said guard can slide relative to the said handle between a guard position where the said guard prevents inadvertent access to the blade and an exposing position where the said guard exposes the blade to the required length for use.

Description

Τ · Surgery Knife and TT · Surgery Blade Guard with removable guard ¾

Technical field:

The present invention relates to surgical instruments, and more particularly to safety scalpels and protective sleeves.

Background technique:

The majority of various types of scalpels and blades currently on the market and used in medical surgery do not have safety protection devices, the blades are bare, and it is easy to cut operators and holders, especially scalpels, regardless of the surgical application When it is delivered, or when the knife is removed and the blade is collected after surgery, the exposed blade can become a way to infect the blood-borne pathogens, so that the majority of medical and cleaning workers are infected with viruses such as HIV, hepatitis B, and hepatitis C Threat. Some advanced countries and manufacturers attach great importance to and work to eliminate the harm caused by this unsafe factor. Some disposable plastic safety scalpels and safety scalpels with sliding sleeve protection devices have been developed and put on the market and used. The most typical is PCT / Au 00/00166, World Patent No. WO 01/05312 A1, published on January 25, 2001, entitled "A SURGICAL SCALPEL WITH RETRACTABLE GUARD". The core of the application is still a protective sliding sleeve that can wrap the surgical blade, and a surgical handle with a sliding groove that can accommodate the protective sliding sleeve. The protective sliding sleeve is a sleeve with an opening at the front end and a slot at one side, which wraps the blade therein, and the sleeve is also provided with an elastic snap-in connection structure to fix or release the blade. The connection structure is composed of convex fingers or bumps and buttons. When the head of the surgical shank protrudes from the slot on the side of the protective sleeve, the blade hole of the blade can be contacted, and the raised fingers or bumps are pushed up, so that the blade is released from the protective slide and is connected with the handle head. Fixed connection, The rear protective sliding sleeve moves backward in the chute on the scalpel handle, and the blade protrudes from the front end of the protective sleeve; adjusting the position of the protective sliding sleeve in the chute can adjust the exposed length of the blade. After the operation is completed, when the protective sliding sleeve is pushed forward from the chute, it removes the blade from the head of the handle, completely wraps it, fixes it in the sliding sleeve, and then removes it from the surgical handle. The invention can effectively protect the stabbing and cutting injuries of the blade, and can protect the blade. It can be used for both disposable scalpels and metal-made scalpels that can repeatedly use their handles. An excellent idea. In particular, metal handles can be used repeatedly for cleaning, disinfection, and have a certain weight and good feel, which is favored by surgeons. The invention can exert its protective effect on most types of surgical shanks, but it is not applicable to the No. 7 shank for deep cavity surgery. S is the back of the No. 7 shank head of the No. 7 shank. The slender neck is similar in thickness to the head, and this part is where the chute is located, but the width of the chute is much larger than the width of the head of the handle. In addition, the width of the curved hook blade is much larger than that of the straight blade, and the width of the shank is limited, and it cannot accommodate the protective sliding sleeve surrounding the curved hook blade. It can be seen that the invention cannot meet the requirements of all types of surgical blades and scalpels. Secondly, the chute on the scalpel handle is a groove closed on three sides and open on one side. In order to prevent the protective sliding sleeve from falling off from the open side of the chute, for this purpose Must have a structural design to prevent falling off, which will easily form a hidden "dead corner" between the inner walls of the chute, which is difficult to clean and leaves hidden dangers. Summary of the invention:

The purpose of the present invention is to provide a safety scalpel and blade protection device that is in line with international safety standards for the operation of sharp instruments, optimizes a reasonable traditional design, and is economical and practical, not only during the transfer of the blade itself, but also in combination with the blade and the handle. The whole process of surgical operation and post-operative treatment can effectively prevent stabs and cuts, eliminate the source of infection, and mainly solve the technical problem that the present invention can be used on various types of surgical handles and blades; the second is to solve the surgery "Dead angle" technical problem that the handle is not easy to clean.

In order to achieve the above object and solve the technical problems mentioned above, the scalpel with a protective sliding sleeve of the present invention is composed of a blade, a protective sliding sleeve and a knife handle. Its characteristics are: The blade can be a variety of traditionally used blades, or a special blade that matches the fixed blade part of the handle. The blade has a blade hole in the center, the end of the blade is the blade end, and the lower part has a blade and a blade hole. And the size and shape of the blade end must match the size and shape of the corresponding fixed part of the handle. The protective sliding sleeve is provided with longitudinal and horizontal sliding grooves, a blade layer, front and rear elastic pieces and a sliding sleeve pusher, and the blade is placed in the blade layer. The vertical chute and the horizontal chute cross each other, and the front and rear ends are open and penetrated; the horizontal chute and the blade layer are penetrated. The back surface of the protective sliding sleeve can be opened, and a gap penetrating the vertical and horizontal sliding grooves can be set, and it can also be closed to accommodate a shank with a horizontal axis backside or a toolholder without a horizontal axis backside; the vertical and horizontal sliding grooves They are closely fitted with the longitudinal and horizontal axes on the tool holder, respectively, so that the protective sliding sleeve can slide back and forth on the tool holder. With the protective sleeve moving backward, the blade is fixed on the head of the handle, and the length of the blade's exposed length can be adjusted to prevent cuts. The protective sleeve is pushed forward. After wrapping and fitting the blade, push it away from the handle. . For example, when it is applied to a disposable safety scalpel, it stays after completely wrapping the blade and is fixed at the forefront of the handle. The adjacent layer parallel to the vertical slide groove in the protective sleeve is the blade layer. The front end of this layer is open and the rear end is closed. Because the blade must be lifted up when it is to be removed from the handle, it is at the bottom of the blade layer. There is an upward sloping surface; if it is applied to a disposable safety scalpel, the bottom surface of the tail of the blade layer does not need this sloping surface. A raised sliding sleeve pusher is provided on the rear surface of the protective sliding sleeve. When the blade is detached from the handle, the pusher is pushed forward so that the blade tail rests on the upward inclined surface. The elastic tension formed by the blade bending inserts the blade into the blade. Fit and stay in the blade layer of the protective sleeve without falling off; the center of the slider of the sliding sleeve can be provided with two free elastic stop pieces, the end of which can abut the horizontal axis of the handle, the stop recess or Only The moving holes are locked together, so that the protective sleeve can be stopped and locked in a desired position. The material of the protective sleeve can be various materials such as plastic, metal, etc. It is better to be disinfectable and transparent. The front end of the shank is the shank head of the fixed blade. There are fixed grooves on both sides of the shank head. The shank head extends backward to form the shank horizontal axis. There is a recess on the horizontal axis immediately behind the shank head. The size and shape of the blade tailstock on the blade end of the blade must be matched and matched with the size and shape of the blade hole, the blade tail end, and shape on the handle. In addition, the horizontal axis There can also be a stopper recess. If it is a disposable safety scalpel, an additional stopper hole is set in front of the stopper recess on the horizontal axis, so that the protective sleeve can be fixed in the operation after the entire blade is finally wrapped. The foremost end of the knife; there is a vertical axis on the upper and lower sides of the horizontal axis, and the vertical and horizontal axes on the shank are closely matched with the vertical and horizontal slide grooves in the protective sleeve, so that the entire protective sleeve can be placed on the handle steadily The end of the handle can resemble a traditional handle, or it can have a length measuring scale. The material of the handle can be a conventional metal material such as stainless steel, or it can be a variety of disposable materials.

Since various surgical blades can be sold separately, in order to protect the blades from damage and harm to the human body, the present invention also naturally extends to a protective sliding sleeve for a surgical blade, which wraps and fixes all the surgical blades in its blade layer. The protective sliding sleeve has front and rear ends which are open, penetrated, and intersect with each other; a vertical chute and a horizontal chute; a blade layer penetrating the horizontal chute, the front end is open, the rear end is closed, and the bottom of the tail has an upward inclined surface; The surface is provided with front and rear elastic sheet protrusions protruding toward the blade layer, and the front and rear elastic sheet protrusions can extend into the blade holes of the blade.

The design of the invention not only maintains the advantages in the design and application of traditional scalpels and blades, but also incorporates the concept of safety standards. It has the following advantages:

1. The design of the present invention is based on the working principle that the vertical and horizontal slide grooves in the protective sleeve closely cooperate with the vertical and horizontal axes on the tool holder, and the entire protective sleeve is covered outside the tool holder, so it is not Accept Degree constraints can be applied to existing scalpels and blades of various models; and the same handle can be equipped with blades of various specifications and their corresponding protective sleeves.

2. After the protective sleeve and the blade are removed from the handle, the handle is open because the vertical and horizontal axes are free from hidden "dead corners", so it is easy to clean and can be repeatedly disinfected.

3. According to actual needs, after optimizing the design of the currently applied scalpel reasonably, an economical and practical safety scalpel has been invented. It can be used repeatedly with the same shank, equipped with a variety of blades of different specifications and Corresponding protective sleeves can also produce disposable safety scalpels.

4. Simple and reliable one-handed operation, which not only maintains the operator's requirements for the weight and feel of the scalpel, but also reflects the advanced nature of modern design, such as adjusting the exposed length of the blade, clear locking tips, and a graduated knife. The handle also makes the operation of loading and unloading blades safe and fast, and gains valuable time for treatment.

Brief description of the drawings:

FIG. 1 is a schematic perspective view of a scalpel according to the present invention.

Figure 2 is a schematic diagram of the blade structure.

FIG. 3 is a schematic perspective view of a protective sliding sleeve according to the present invention.

FIG. 4 is a side sectional structural view of FIG. 3.

FIG. 5 is a schematic perspective view of the back side closed protection sliding sleeve of the present invention.

FIG. 6 is a schematic perspective view of another protective sliding sleeve according to the present invention.

FIG. 7 is a side sectional structural view of FIG. 6.

Figure 8 is a top view of a shank matched with a back-side closed protective sliding sleeve.

FIG. 9 is a schematic perspective view of a holder of the present invention. FIG. 10 is a schematic structural diagram of the back side of FIG. 9.

FIG. 11 is a top view of FIG. 9.

FIG. 12 is a schematic diagram of another tool holder structure of the present invention.

FIG. 13 is a top view of FIG. 12.

detailed description:

First, referring to FIG. 1, a scalpel with a protective sliding sleeve according to the present invention is composed of a blade 1, a protective sliding sleeve 2, and a handle 3. The blade 1 can be a variety of blades in conventional use, or a special blade that matches and fits the position of the fixed blade 1 on the handle 3, and has a blade hole 11 in the center of the blade 1 (see Figure 2). The part is the blade tail end 12, whose size and shape match and match the size and shape of the holder head 31 (see FIGS. 8 and 9), the fixing groove 32 and the blade tail 35 of the holder 3, respectively. It is used to fix the blade 1 on the shank 3, and a knife edge 13 is provided on the lower part of the blade 1. Please refer to FIGS. 3 to 7. The protective sliding sleeve 2 has the vertical sliding groove 21, the horizontal sliding groove 22 and the blade layer 23 intersecting each other. The horizontal sliding groove 22 penetrates the blade layer 23. The back surface of the protective sliding sleeve 2 can be opened. A notch is provided which penetrates the longitudinal and horizontal sliding grooves 21 and 22, and the notch is fitted with the back side 342 of the horizontal axis on the tool holder 3 (see FIGS. 10 and 11), and the back surface can also be closed (see FIG. 10). 5, 6), in cooperation with the shank body 3 (see FIG. 8) without the back side 342 of the horizontal axis, the vertical sliding groove 21 and the horizontal sliding groove 22 are firmly and closely connected to the vertical axis 33 and the horizontal axis 34 on the tool holder 3, respectively. It fits so that the protective sliding sleeve 2 can be slid back and forth on the handle 3. When the protective sleeve 2 slides backward, firstly insert both sides of the blade hole 11 in the blade 1 placed in the blade layer 23 into the holder groove 31 fixing groove 32 to complete the blade 1 in the holder head 31 The installation on the top is fixed, and the exposed length of the blade edge 13 can be adjusted at will to avoid cuts. The longitudinal and horizontal slide grooves 21 and 22 are opened forward and backward. When the protective sleeve 2 is pushed forward along the longitudinal and horizontal axes 33 and 34 on the handle 3, after wrapping and fitting the blade 1, Lift away from the handle 3; or, if it is applied to a disposable safety scalpel, stay behind the securely wrapped blade 1 and fix it at the foremost end of the handle 3. The adjacent layer parallel to the longitudinal chute 21 is the blade layer 23. The front end of the blade layer 23 is open and the rear end is closed. When the blade 1 wants to detach from the handle 3, the tail of the blade 1 must be raised first, so the blade layer 23 The bottom surface of the tail portion has an upward inclined surface 24; if it is applied to a disposable safety scalpel, the bottom surface of the tail portion of the blade layer 23 does not need this inclined surface 24 inclined upward. The trailing surface of the protective sleeve 2 is correspondingly raised to form a sliding sleeve pusher 25. When the blade 1 is detached from the handle 3, the sliding sleeve pusher 25 is pushed forward, and the tail of the blade rests on the upper inclined surface 24, so that the blade 1 is bent. The formed elastic tension fits the blade 1 and leaves it in the blade layer 23 of the protective sleeve 2 so as not to fall off. An elastic stopper piece 26 can be provided at the center of the sliding sleeve pusher 25. The end of the stopper piece can abut against the horizontal axis 34 and engage with the stopper recess 36 or stopper hole 39 to protect the entire protection. The sleeve 2 is stopped and locked in a desired position. In order to make the blade 1 more reliably positioned and fixed in the blade layer 23, the outer surface of the protective sliding sleeve is provided with two front elastic pieces 27 (see FIGS. 6 and 7) and rear elastic pieces 28 which are free from each other. The free ends are respectively provided with a front elastic piece convex body 271 and a rear elastic piece convex body 281 protruding inward, and the front elastic piece convex body 271 and the rear elastic piece convex body 281 can be embedded in the blade hole 11 to fix the blade 1 to prevent it from falling off the protection slide Set of 2 outside. After the head of the handle enters the protective sleeve 2, the front and rear elastic pieces 271 and 281 are lifted out of the blade hole 11, and the blade 1 is fixed on the head 31 of the handle. The material of the protective sleeve 2 can be various materials such as plastic, metal, etc. It is better to be disinfectable and transparent. Please continue to refer to FIG. 8, FIG. 9, FIG. 10, and FIG. 11. The front end of the shank 3 is a shank head 31, and there are fixing grooves 32 on both sides thereof. The shank head 31 extends backward to form a shank horizontal axis 34. Immediately after the horizontal axis 34 is adjacent to the shank head 31, there is a recess for the blade tailstock 35. As described above, the shank head 31, the fixing groove 32, and the blade tailstock 35 on the shank 3 are respectively on the blade 1. Blade holes 11 and The size and shape of the tail end 12 of the blade are matched and matched to fix the blade 1 on the handle 3, and a plurality of stop recesses 36 can be provided on the horizontal axis 34 behind the blade tail 35, and the back of the handle 3 A lateral axis back side 342 may be provided on the side. If the design principle of the present invention is applied to a disposable safety scalpel, a stopper hole 39 is provided in front of all the stopper recesses 36 on the horizontal axis 34, so that the protective sliding sleeve 2 can be wrapped around the whole After the blade 1, it is fixed at the forefront of the scalpel. A vertical axis 33 is erected above and below the horizontal axis 34. The vertical and horizontal axes 33 and 34 on the tool holder 3 fit tightly with the vertical and horizontal slide grooves 21 and 22 in the protective sliding sleeve 2 so that the entire protective sliding sleeve 2 can stably extend and slide on the tool holder 3, The blade 1 is wrapped in the blade layer 23 in the protective sleeve 2; the shank end 38 may be similar to the traditional shank, or may have a length measuring scale; the material of the shank 3 may be a conventional metal material such as stainless steel, Can also be a variety of disposable materials.

In addition to the above-mentioned various types of scalpel handles with wider handles, the present invention can also be implemented on scalpel handles with a slender neck. Figures 12 to 13 are the No. 7 used in the deep cavity surgery of the present invention. The scalpel handle 3 ′ embodiment, the scalpel handle 3 ′ elongated neck 37 is a part of the horizontal axis 34. The longitudinal axis 33 is divided into two different parts and placed on and below the transverse axis 34 as the two ends of the elongated neck 37, so that the protective sleeve 2 can smoothly cross the elongated neck 37, Telescopic sliding on the handle 3 '.

According to the design structure of the present invention, before the operation starts, firstly select the blade 1 with the corresponding protective sleeve 2 with the required specifications, so that the vertical sliding groove 21 and the horizontal sliding groove 22 in the protective sliding sleeve 2 are along the longitudinal axis 33, respectively. The horizontal axis 34 is fitted on the handle 3, and after the stop piece 26 prompts the lock, wait for use. When the operation is performed, the operator's field of vision does not need to leave the operation area, pick up the scalpel with the blade 1 completely wrapped, and push the sliding sleeve pusher 25 with one hand according to the depth of the incision to choose the length of the exposed blade 13 , While effectively improving the efficiency of the operation, it also effectively prevents cutting Injuries, infections and other medical accidents. After the operation is completed, if it is a disposable safety scalpel, push the sliding sleeve pusher 25 forward further so that the stopper piece 26 is locked in the stopper hole 39 and locked for centralized processing; if used, For repeated use of the surgical handle, push the sliding sleeve 2 forward, and then push away from the head 31 of the handle after the blade 1 is fitted. At this time, the blade 1 is completely wrapped and cannot be detached in the protective sliding sleeve 2. The collector's contact with the contaminated blade 1 also makes handling of such dangerous sharpeners safer and easier. The shank 3 after removing the blade 1 and the protective sleeve 2 can be thoroughly cleaned in a conventional manner, and then reused after disinfection. The same tool holder 3 can be used for a variety of blades 1 and protective sleeves 2 of different specifications, which is both economical and practical; it not only carries forward the traditional advantages, but also reflects the concept of a modern safe working environment.

Similarly, according to the design and construction of the present invention, the blades 1 of various specifications and models can be placed in the corresponding protective sleeve 2 to form a protective sleeve for a surgical blade for purchase. Industrial applicability:

The above is the structural design and operating principle of the protective sliding sleeve of the scalpel and surgical blade with the protective sliding sleeve of the present invention. Any safety knife handle, protective sliding sleeve and scalpel designed similarly to the concept and principle of the present invention should belong to the present invention. The scope of protection of the invention.

Claims

Rights request

1. A scalpel with a protective sliding sleeve, which is composed of a blade, a protective sliding sleeve and a shank, which is characterized in that: the protective sliding sleeve is covered on the outside of the shank, and the vertical sliding groove and the horizontal sliding groove in the protective sliding sleeve are respectively The close cooperation of the vertical axis and the horizontal axis on the tool holder allows the protective sliding sleeve to slide back and forth on the tool holder to complete the installation and fixation of the blade on the head of the tool holder, adjust and lock the length of the blade to be exposed, and The blade is completely wrapped in the blade layer in the protective sliding sleeve, and the protective sliding sleeve wrapped with the blade is still removed from the handle.

2. The scalpel according to claim 1, wherein: the protective sliding sleeve is provided with a vertical sliding groove and a horizontal sliding groove that intersect with each other and a blade layer communicating with the horizontal sliding groove; the vertical sliding groove and the horizontal sliding groove; The front and rear sides are open and open; there is a raised sliding sleeve pusher on the tail surface of the protective sliding sleeve. There can be a stopper in the center of the sliding sleeve pusher, the back surface is completely closed, and a gap penetrating the vertical and horizontal slide grooves can also be opened. .

3. The scalpel according to claim 1, characterized in that: the front end of the blade layer of the protective sliding sleeve is open and the rear end is closed; for the scalpel that repeatedly uses the handle of the removable blade, the bottom mask of the blade layer has an upward direction. The inclined surface may not be provided for a disposable scalpel.

4. The scalpel according to claim 1, wherein the protective sliding sleeve is provided with a front elastic sheet and a rear elastic sheet free of three sides, and the front and rear elastic sheets respectively have blade holes that can be inserted into the blade and protrude toward the blade layer. The front and back springs are convex.

5. The scalpel according to claim 1, wherein: the shank head extends rearwardly on the shank to form a horizontal axis, and there is a space between the shank head and the horizontal axis that matches the end of the blade. The blade tailstock is provided with a vertical axis above and below the horizontal axis.

6. The scalpel according to claim 5, characterized in that: the longitudinal axis on the shank is divided into two parts spaced apart from each other, so that a part of the horizontal axis without the vertical axis connected to form a thin neck portion of the shank, which is suitable for use. Shank for deep cavity surgery.

7. The scalpel according to claim 2, 3, 4, 5, or 6, characterized in that: a horizontal axis of the shank can be provided with a stop recess, and a stop hole can be added.

8. A protective sliding sleeve for a surgical blade, characterized in that: the protective sliding sleeve has longitudinal and horizontal sliding grooves which cross each other, and are open through forward and backward, and a blade layer which communicates with the horizontal sliding groove and can be provided with a blade; The rear end is closed, and the rear bottom mask has an upward inclined surface. The outer surface is provided with front and rear elastic protrusions that protrude toward the blade layer and extend into the blade hole of the blade.

9. The protective sliding sleeve of a surgical blade according to claim 8, characterized in that: a tail surface of the protective sliding sleeve has a raised sliding sleeve pusher.

10. The protective sliding sleeve of a surgical blade according to claim 8 or 9, characterized in that the back surface of the sliding sleeve can be completely closed, or a gap penetrating through the longitudinal and horizontal sliding grooves can be provided.