CN215739307U - Operation puncture device - Google Patents

Abstract

The utility model discloses a surgical puncture device, wherein the surgical puncture device comprises a handle, a puncture knife and a sheath; the puncture knife is mounted on the handle, and a cutter is arranged at one end, away from the handle, of the puncture knife; the sheath is sleeved on the puncture knife and is elastically connected with the handle, and the sheath can move relative to the puncture knife to expose or cover the knife. The sheath of the surgical puncture device can move relative to the puncture knife so as to expose the knife when in use and cover the knife when not in use, thereby avoiding accidental injury, protecting the surgical incision, preventing secondary injury and improving the use safety of the surgical puncture device.

Description

Operation puncture device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a surgical puncture device.

Background

When carrying out the operation in the hospital at present, what adopt is the scalpel of integrative structure, at the in-process of cutting patient skin flesh tissue, judge the lower sword degree of depth of scalpel through experience by the doctor usually, because unable accurate judgement patient skin flesh tissue's thickness, the doctor unavoidably has the condition of judging the error, adopt current scalpel lower sword excessive time easy accidental injury other tissues or organs, and the scalpel lower sword degree of depth need carry out the secondary lower sword when not enough, cut the wound of having cut easily. In addition, after the surgical incision is finished, in the process of retracting the scalpel, the cut wound is easily cut by the existing scalpel, and secondary damage is caused to the wound.

SUMMERY OF THE UTILITY MODEL

The primary object of the present invention is to provide a surgical puncturing device which addresses at least one of the problems identified above in the background.

In order to achieve the above object, the present invention provides a surgical puncture device including:

a handle;

the puncture knife is arranged on the handle, and a cutter is arranged at one end, far away from the handle, of the puncture knife; and

the sheath is sleeved on the puncture knife and is elastically connected with the handle, and the sheath can move relative to the puncture knife to expose or cover the knife.

Optionally, the puncture knife comprises a knife handle and a knife arranged at one end of the knife handle, and the knife handle is detachably connected with the knife.

Optionally, the sheath includes a first engaging portion and a second engaging portion connected to the first engaging portion, the first engaging portion is engaged with the tool, and the second engaging portion is engaged with the tool holder.

Optionally, the surgical puncture device further comprises a spring, the sheath is elastically connected with the handle through the spring, and the spring provides an elastic force for the sheath to move relative to the puncture knife.

Optionally, the outer wall of the second sheathing part is further convexly provided with a baffle, one end of the spring is connected with the baffle, and the other end of the spring is connected with the handle.

Optionally, the handle is further connected with a protective tube, and the sheath is arranged through the protective tube and connected with the handle.

Optionally, a limiting part is further arranged in the protective tube, and the limiting part is used for limiting the sheath to be separated from the protective tube.

Optionally, one end of the protection tube, which is far away from the handle, is arranged in an oblique opening.

Optionally, the cutter includes a mounting shaft and blades attached to opposite sides of the mounting shaft.

Optionally, the mounting shaft is integrally formed with the blade.

According to the technical scheme, in the operation puncture device, the sheath is sleeved outside the puncture knife and is elastically connected with the handle, and the sheath can move relative to the puncture knife to expose or cover the knife, so that when an operation is not performed, the knife is covered in the sheath, accidental injury caused by transmission among doctors and patients can be avoided, and the use safety is improved; when carrying out the operation, can prevent that medical personnel from cutting off the sword degree of depth too much and accidentally injuring other tissues or organs, incised wound when avoiding the lower sword degree of depth to carry out the secondary lower sword inadequately to and when taking out operation piercing depth set after the cutting, avoid causing the secondary injury to the wound.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of a surgical puncturing device of the present invention;

FIG. 2 is an exploded view of the surgical puncturing device of FIG. 1;

FIG. 3 is a front elevational view of the surgical puncturing device of FIG. 1;

FIG. 4 is a schematic view of the structure of the puncture knife of the surgical puncture device of FIG. 1;

fig. 5 is a schematic view of the sheath of the surgical puncturing device of fig. 1.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a surgical puncture device.

Referring to fig. 1 to 5, in the embodiment of the present invention, the surgical puncturing device 10 includes a handle (not shown), a puncturing blade 100, and a sheath 200; as shown in FIG. 1, the piercing knife 100 is mounted to a handle, and a cutter 110 is provided at an end of the piercing knife 100 remote from the handle. The sheath 200 is sleeved on the piercing knife 100 and elastically connected to the handle, and the sheath 200 is movable relative to the piercing knife 100 to expose or cover the cutter 110.

Wherein, the handle imitates the design of the shape of holding of people's hand, and the surface of handle still is equipped with anti-skidding texture to make medical personnel can tightly hold at the operation in-process, avoid taking place to skid and influence the operation.

The puncture knife 100 is detachably connected to the handle to facilitate the installation and replacement of the entire puncture knife 100. It is understood that the piercing knife 100 and the handle may be screwed, for example, the end of the piercing knife 100 connected to the handle may be provided with a threaded portion, the handle is correspondingly provided with a threaded hole, and the end of the piercing knife 100 provided with the threaded portion may be screwed into the threaded hole. Of course, the puncture knife 100 and the handle may be connected by a latch or a snap, and the installation manner of the puncture knife 100 and the handle is not limited herein.

The material of the cutter 110 is stainless steel. The material of the handle and sheath 200 may be metal or plastic, and in the embodiment of the present invention, the material of the handle and sheath 200 is plastic for the sake of production cost and weight.

The sheath 200 is sleeved outside the puncture knife 100 and elastically connected with the handle, one end of the sheath 200, which is far away from the handle, is provided with a through groove 211 for the knife 110 to pass through, in an initial state, the sheath 200 covers the knife 110 under the action of elastic force so that the knife 110 is accommodated in the sheath 200, and when the sheath 200 receives a thrust force which is towards a direction close to the handle and is greater than the elastic force, the sheath 200 can move towards the direction close to the handle relative to the puncture knife 100, so that the knife 110 passes through the through groove 211 and is exposed. The sheath 200 and the handle are elastically connected with each other through an elastic member, wherein the elastic member may be a spring 300, a spring plate or a rubber ball.

Thus, when the surgical puncture device 10 is not in use, the sheath 200 is sleeved outside the puncture knife 100 under the action of elastic force, so that the knife 110 is accommodated in the sheath 200, and compared with the traditional knife 110 with an integrated structure, the surgical puncture device 10 of the embodiment of the utility model can prevent medical staff from being accidentally cut during transmission between the medical staff, and avoid the medical staff from being injured and infected.

During the operation, when the medical staff pricks the surgical puncture device 10 to the lesion site of the patient, the sheath 200 first contacts with the flesh and skin tissue of the patient, the sheath 200 is pressed by the flesh and skin tissue of the patient, and when the pressing force is larger than the elastic force between the sheath 200 and the handle, the sheath 200 moves towards the direction close to the handle relative to the puncture knife 100, so that the knife 110 is exposed and cuts the flesh and skin tissue of the patient. In the cutting process, the cutter 110 extends into the wound, at the moment, the protective sleeve 200 is in contact with the side wall of the wound, the abutting pressure on the protective sleeve 200 is gradually reduced, the protective sleeve 200 gradually moves towards the direction far away from the handle relative to the puncture knife 100, and the length of the cutter 110 exposed out of the protective sleeve 200 is reduced, so that the situation that the medical staff accidentally injure nearby tissues and organs due to too much cutting depth can be prevented, and if the cutting depth is not enough, the cut wound cannot be cut when secondary cutting is carried out.

After the cutting, in the knife retracting process, because the sheath 200 moves along the direction far away from the wound, the abutting pressure on the sheath 200 is smaller than the elastic force between the sheath 200 and the handle, and the sheath 200 automatically moves along the direction far away from the handle relative to the puncture knife 100 under the action of the elastic force, so that the knife 110 is covered by the sheath 200 again, the cut wound can be prevented from being damaged by the knife 110, the tissues near the cut wound can be prevented from being cut, and the wound can be protected. Meanwhile, the medical staff can draw out the operation puncture device 10 without worry, and the operation efficiency is improved.

According to the technical scheme, in the surgical puncture device 10, the sheath 200 is sleeved outside the puncture knife 100, the sheath 200 is elastically connected with the handle, and the sheath 200 can move relative to the puncture knife 100 to expose or cover the cutter 110, so that when no surgery is performed, the cutter 110 is covered in the sheath 200, accidental injury caused during transmission between doctors and patients can be avoided, and the use safety is improved; when the operation is carried out, the medical staff can be prevented from accidentally injuring other tissues or organs due to too much cutting depth, the wound is prevented from being cut when the secondary cutting is carried out insufficiently, and the secondary injury to the wound is avoided when the operation puncture device 10 is drawn out after the cutting is finished.

Further, in one embodiment, the puncture knife 100 includes a handle 120 and a knife 110 disposed at one end of the handle 120, and the handle 120 is detachably connected to the knife 110. Referring to fig. 4, in the present embodiment, the shape of the tool holder 120 is an elliptic cylinder, but of course, the shape of the tool holder 120 may also be a cylinder or a polygonal prism, and the shape of the tool holder 120 is not limited herein.

It is understood that the knife 110 used in hospitals is generally disposable in order to prevent infection of germs, and the knife handle 120 can be reused after high-temperature sterilization, and the knife handle 120 is detachably connected to the knife 110 in order to conveniently detach the used knife 110 to replace a new knife 110. The tool shank 120 and the tool 110 may be connected by a screw or a bolt. In addition, the material of the shank 120 may be the same as or different from the material of the tool 110, and in this embodiment, in order to enhance the stability of the connection between the tool 110 and the shank 120, the material of the shank 120 and the tool 110 are made of stainless steel.

Further, in an embodiment, referring to fig. 1, 3 and 5, the sheath 200 includes a first engaging portion 210 and a second engaging portion 220 connected to the first engaging portion 210, the first engaging portion 210 is disposed on the cutter 110, and the second engaging portion 220 is disposed on the handle 120. In this embodiment, the cross-sectional shape of the first engaging portion 210 is a flat ellipse, and the width of the first engaging portion 210 decreases gradually from the end close to the second engaging portion 220 to the end far from the second engaging portion 220, so as to adapt to the shape of the opening of the wound and reduce pain. The shape of the second engaging portion 220 corresponds to the shape of the tool holder 120.

Further, the surgical puncturing device 10 further includes a spring 300, as shown in fig. 2, the sheath 200 is elastically connected to the handle by the spring 300, and the spring 300 provides an elastic force for the sheath 200 to move relative to the puncturing blade 100. It will be appreciated that in the initial state, the sheath 200 covers the cutter 110 under the force of the spring 300, and when the sheath 200 is subjected to an external force greater than the force of the spring 300, the sheath 200 moves towards the handle, thereby exposing the cutter 110.

As can be understood, referring to fig. 5, a baffle 221 is further protruded from an outer wall of the second nesting portion 220, one end of the spring 300 is connected to the baffle 221, and the other end of the spring 300 is connected to the handle. The two ends of the spring 300 are respectively connected with the baffle 221 and the handle, and the two ends of the spring may abut against each other, may be connected by gluing, and may be welded by heat fusion. The baffle 221 is protruded to be annularly arranged around the outer wall of the second nesting portion 220 so that the spring 300 can be sufficiently contacted with the baffle 221.

Further, in an embodiment, referring to fig. 1 and 2, the handle is further provided with a protection tube 400 in a protruding manner, and the sheath 200 is inserted into the protection tube 400 and connected with the handle. Wherein, the section shape of the protective tube 400 corresponds to the section shape of the sheath 200, and the protective tube 400 and the handle are integrally formed. It is understood that the sheath 200 can be guided by providing the protection tube 400 outside the sheath 200 so that the sheath 200 can smoothly move with respect to the puncture blade 100; meanwhile, the protection tube 400 protects the sheath 200 and the puncture knife 100, and prevents the sheath 200 from bending and deforming due to the action of a lateral external force.

Further, in one embodiment, in order to prevent the sheath 200 from being irreversibly deformed by a longitudinal external force (e.g. a medical staff accidentally pulling) larger than the force of the spring 300, and to prevent the sheath 200 from being separated from the protection tube 400 due to the failure or even breakage of the spring 300, a limiting portion (not shown) is further disposed in the protection tube 400. Wherein, spacing portion is the design of annular plate form to reserve and dodge the hole and supply sheath 200 to pass, spacing portion is used for with baffle 221 butt, breaks away from in order to restrict sheath 200 from protective tube 400.

Further, the one end that protective tube 400 kept away from the handle is the bevel connection setting, as shown in fig. 1, so, when the wound is too dark for protective tube 400 and wound contact, the bevel connection design can be so that protective tube 400 smoothly gets into in the wound, avoids protective tube 400 and wound to produce too big resistance, can reduce patient's sense of pain.

Further, in an embodiment of the present invention, referring to fig. 4, in order to enhance the overall strength of the cutter 110, the cutter 110 includes a mounting shaft 111 and blades 112 connected to opposite sides of the mounting shaft 111. Wherein, blade 112 sets up for installation axle 111 symmetry, and blade 112 is whole to be "V style of calligraphy" design to make blade 112 sharper. Compared with the cutter 110 only provided with the blade 112 on the market, the overall strength of the cutter 110 can be enhanced, the acting force applied to the blade 112 can be transmitted to the mounting shaft 111, the blade 112 is prevented from being easily deformed, and the service life of the blade 112 can be prolonged. Moreover, with this arrangement, the design thickness of the blade 112 can be reduced while ensuring sufficient strength of the cutter 110, so that the blade 112 can be designed to be thin.

Further, in one embodiment, the mounting shaft 111 is integrally formed with the blade 112 in order to further enhance the overall strength of the cutter 110. So, through integrated into one piece, not only further strengthened the bulk strength of cutter 110, can also save the connection structure of installation axle 111 and blade 112, reduced the processing degree of difficulty and reduction in production cost.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A surgical puncturing device, comprising:

a handle;

the puncture knife is arranged on the handle, and a cutter is arranged at one end, far away from the handle, of the puncture knife; and

the sheath is sleeved on the puncture knife and is elastically connected with the handle, and the sheath can move relative to the puncture knife to expose or cover the knife.

2. The surgical puncture device of claim 1, wherein the puncture knife includes a handle and the knife disposed at one end of the handle, the handle being removably coupled to the knife.

3. The surgical puncture device of claim 2, wherein the sheath includes a first engaging portion and a second engaging portion connected to the first engaging portion, the first engaging portion being engaged with the knife and the second engaging portion being engaged with the handle.

4. The surgical puncturing device of claim 3, further comprising a spring, wherein the sheath is resiliently coupled to the handle via the spring, and wherein the spring provides a spring force for movement of the sheath relative to the puncturing blade.

5. The surgical puncture device according to claim 4, wherein a baffle is further protruded from an outer wall of the second sheathing portion, one end of the spring is connected to the baffle, and the other end of the spring is connected to the handle.

6. The surgical puncturing device of claim 1, wherein the handle is further coupled to a protective tube, the sheath being disposed through the protective tube and coupled to the handle.

7. The surgical puncture device of claim 6, wherein a stop is further disposed within the protective tube for limiting the sheath from disengaging from the protective tube.

8. The surgical puncturing device of claim 6, wherein an end of the shielding tube distal from the handle is beveled.

9. The surgical lancing device of any one of claims 1 to 8, wherein the knife includes a mounting shaft and blades attached to opposite sides of the mounting shaft.

10. The surgical puncturing device of claim 9, wherein the mounting shaft is integrally formed with the blade.

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