CN211609973U - Medical hole puncher capable of bending at multiple angles - Google Patents

Abstract

The utility model discloses a medical hole puncher that can multi-angle bending, include the main casing body and install the connection casing in main casing body one end, the direction casing is installed to the one end of connecting the casing, force applying mechanism is installed to the other end of the main casing body, the one end movable mounting of direction casing has first universal joint, and installs on the first universal joint and bend the arm strip, bend arm strip one end and install out the sword casing, and the internally mounted who goes out the sword casing has the mechanism of punching, the internally mounted who bends the arm strip has guiding mechanism, and guiding mechanism receives the force applying mechanism effect, and guiding mechanism promotes the mechanism of punching and punches. The utility model discloses a be provided with a series of structures for this medical hole puncher can realize the bending of multi freedom multi-angle with the help of flexible crank arm strip and universal joint, changes the atress angle of tool bit, and realizes the transmission of power, guarantees to realize accurate vertically and punches.

Description

Medical hole puncher capable of bending at multiple angles

Technical Field

The utility model relates to a hole puncher technical field specifically is a medical hole puncher that can multi-angle bending.

Background

In medical operation, according to different diseases of patients, different operation treatments are required, for example, in the process of coronary artery bypass transplantation, heart transplantation or kidney transplantation, a round hole needs to be artificially punched at the apex of a heart chamber of a left ventricle of a blood vessel or a heart.

In traditional punching process, generally carry out by the handheld scalpel of medical staff, and this method need rely on medical staff personal ability the time, the opening is great to often along with producing human tissue piece and remaining, cause certain hindrance to healing etc. in later stage, also have the hole puncher of applying moment simultaneously about, in order to puncture human tissue, and this type of method is comparatively clumsy, and actual operation is hindered great by factors such as space, can't accurately find the point of falling the knife.

Among the prior art, also there is the hole puncher that adopts the long straight type to punch, punch similar to the acupuncture, can guarantee that inorganization piece produces, but when punching surfaces such as the circumference blood vessel that is located the lacuna stenosis and deep position, the hole puncher itself receives human tissue restriction all around easily, the hole puncher itself is long straight type part, can't change the angle of falling the sword under narrow and darker environment, the cutter body can't find exact angle of falling the sword and position on the surface, hole puncher and blood vessel etc. easily produce small-angle slope and non-vertical state, but formed a slender passageway after punching, the wound face has not only been increased, be more unfavorable for operation later stage and patient wound healing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a medical hole puncher that can multi-angle bending to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a medical hole puncher that can multi-angle bending, includes the main casing body and installs the connection casing in main casing body one end, the direction casing is installed to the one end of connecting the casing, application of force mechanism is installed to the other end of the main casing body, the one end movable mounting of direction casing has first universal joint, and installs the arm strip that cranks on the first universal joint, crank arm strip one end and install out the sword casing, and the internally mounted of going out the sword casing has the mechanism of punching, the internally mounted of arm strip that cranks has guiding mechanism, and guiding mechanism receives application of force mechanism effect, and guiding mechanism promotes the mechanism of punching and punches the operation.

Preferably, the force application mechanism includes a holding portion and a pressing portion, the holding portion is mounted on the surface of the main housing, the pressing portion is movably mounted on one end of the main housing, which is far away from the connecting housing, and the pressing portion extends into the main housing.

Preferably, the first universal joint is connected with the guide shell through threads, the guide shell is communicated with the inside of the first universal joint, a movable cavity is arranged inside the first universal joint, and an expansion cavity is arranged inside a crank arm strip at the joint of the first universal joint and the crank arm strip.

Preferably, guiding mechanism includes guide groove body and snakelike chain, and the guide groove body is installed inside the cranking arm strip, and the one end of guide groove body extends to in the sword shell, and the snakelike chain is spacing to be installed inside the guide groove body, and the snakelike chain is formed by promoting the mutual articulated combination of roller bearing.

Preferably, the two ends of the pushing rolling shaft are both provided with balls, and the balls are movably arranged inside the guide groove body.

Preferably, the punching mechanism comprises a cutter bar and a cutter head, the cutter bar is mounted inside the cutter outlet housing, and the cutter head is mounted on one end surface of the cutter bar.

Preferably, there is a transmission mechanism installed inside the movable cavity, the transmission mechanism includes a curved bar and a transmission rod, the curved bar is installed inside the movable cavity, one end of the curved bar is hinged to the serpentine chain, the transmission rod is installed inside the pressing part, one end of the transmission rod extends to the movable cavity, and the curved bar is connected with the transmission rod through a second universal joint.

Preferably, a lead rod is arranged between the transmission rod and the second universal joint, and the surface of the joint of the lead rod and the transmission rod is provided with threads.

Preferably, a connecting ring is installed at the joint of the lead rod and the transmission rod through threads, and a retaining ring is installed on the surface of the lead rod on one side of the threads.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this medical hole puncher that can multi-angle bending, through first universal joint, can carry out the rotary motion of arbitrary angle, drive the crank arm strip and carry out the regulation of arbitrary angle, do benefit to and overcome uneven environment all around, guarantee at the in-process of punching, make the tool bit be the vertical state with human tissue, and use jointly with the crank arm strip, the rubber materials of crank arm strip for having moderate flexibility and toughness, but the atress carries out corresponding bending operation, be different from the hole puncher of current long straight type, usable medical pincers etc. carry out bending operation to the crank arm strip, guarantee that the sword casing is in suitable angle, thereby guarantee the actual quality of punching.

2. This medical hole puncher that can multi-angle bending, through going out the sword casing, it is the stereoplasm position, do benefit to the tool bit and derive from its inside orientation, through promoting the roller bearing, form a snakelike chain by a plurality of combinations, can receive external force to roll in the inside of cranking arm strip and move ahead, reach the transmission of moment, promote the cutter arbor and even the tool bit moves, and then reach the effect of punching, through the direction cell body, and use with the ball combination, can carry on spacingly to the both ends that promote the roller bearing, and produce the direction effect, under the circumstances that the atress promoted, make and promote the roller bearing and can follow the direction cell body and carry out the directional motion, better moment transmission effect at first.

3. This but medical hole puncher of multi-angle bending, through the second universal joint, when can realize being connected between transfer line and the curved bar, the two can be forced and carry out angular rotation, and the transmission of the moment of being convenient for, through the activity chamber, the inner space is great, can provide required occasion for the relative rotation between transfer line and the curved bar equal motion, and use with the extension chamber combination, can provide main space for the motion of curved bar, avoid curved bar atress rotatory and receive narrow space all around when moving to one side and take place unfavorable phenomena such as screens.

4. This medical hole puncher that can multi-angle bending, through threaded connection between first universal joint and the direction casing, can be when in-service use, make and realize the separation between first universal joint and the direction casing and dismantle the effect, be convenient for overhaul operation such as inside first universal joint, and through leading the link rod, can be connected or separate with the transfer line, and the moment that the transmission line produced, under the condition that does not use bent arm strip, be convenient for dismantle and separate it, satisfy the in-service use demand.

Drawings

FIG. 1 is a schematic view of the entire structure of embodiment 1;

FIG. 2 is a partial structural sectional view of embodiment 1;

FIG. 3 is a schematic view of a portion of the structure of FIG. 2;

fig. 4 is a schematic view of the articulated mechanism of embodiment 2.

In the figure: 1. discharging the cutter shell; 2. a crank arm strip; 3. a guide housing; 4. a grip portion; 5. a pressing part; 6. a main housing; 7. connecting the shell; 8. a first universal joint; 9. a cutter head; 10. a guide groove body; 11. a second universal joint; 12. a transmission rod; 13. a movable cavity; 14. a curved bar; 15. an expansion chamber; 16. pushing the roller; 17. a cutter bar; 18. a ball bearing; 19. a guide link; 20. a retainer ring; 21. and (7) connecting rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1 to 3, the medical hole puncher capable of bending at multiple angles in the present embodiment includes a main housing 6 and a connecting housing 7 installed at one end of the main housing 6, the connecting housing 7 and the main housing 6 are similar to a general hole puncher, an elastic component, a guide component, etc. are installed inside the main housing 6, the guide housing 3 is installed at one end of the connecting housing 7, the inner wall is smooth, and can guide the main housing 6 and even the guide component inside the connecting housing 7, a force application mechanism is installed at the other end of the connecting housing 7 inside the connecting housing 7, which can facilitate manual torque application and drive the internal power component of the whole hole puncher to move, the force application mechanism includes a holding part 4 and a pressing part 5, the holding part 4 is installed on the surface of the main housing 6, the holding part 4 is made of medical plastic material, and is of wing shape as a whole, which, the pressing part 5 is movably arranged at one end of the main shell body 6 far away from the connecting shell body 7, the pressing part 5 extends into the main shell body 6, the actual elastic part is arranged in the pressing part 5, a finger can overcome a spring to do work on the pressing part 5, so that the pressing part 5 enters the main shell body 6 to further achieve the force application effect, one end of the guide shell body 3 is movably provided with a first universal joint 8, a connecting cylinder body is arranged between the first universal joint and the second universal joint and is formed by connecting two spherical parts actually, relative rotation movement at any angle can be carried out by means of the activity performance of the universal joint, the first universal joint 8 is provided with a curved arm strip 2, the curved arm strip 2 is made of rubber material with moderate flexibility and toughness and can be subjected to moment with specific size to carry out bending movement, and on the basis of rotation of the first universal joint 8, the curved arm strip 2 can be subjected to corresponding, the bending operation is carried out on the crank arm strip 2 by utilizing medical forceps and the like, the cutter discharging shell 1 is ensured to be at a proper angle, so that the actual punching quality is ensured, the cutter discharging shell 1 is arranged at one end of the crank arm strip 2, a channel for conducting the outside exists inside the cutter discharging shell 1, a punching mechanism is arranged inside the cutter discharging shell 1 and comprises a cutter bar 17 and a cutter head 9, the cutter bar 17 is arranged inside the cutter discharging shell 1 and is a circular metal rod piece and can move in the left and right directions under stress, the cutter head 9 is arranged on the surface of one end of the cutter bar 17, the end surface is sharp, when the cutter bar is actually used, the cutter head 9 is driven by the cutter bar 17 to be led out of the cutter discharging shell 1 and directly acts on human tissues, so that the punching effect is realized, a guide mechanism is arranged inside the crank arm strip 2 and is acted by a force application mechanism and can apply torque to push the cutter bar, the guide groove body 10 is arranged inside the crank arm strip 2 and is a groove body in an up-and-down mode, the inner wall of the guide groove body 10 is in an I-shaped structure, one end of the guide groove body 10 extends into the cutter outlet shell body 1, the actual extension effect is convenient, the snake-shaped chain is arranged inside the guide groove body 10 in a limiting mode, and performs a limiting movement along the interior of the guide groove body 10, the serpentine chain is formed by mutually hinging and combining pushing rollers 16, the tail end of the serpentine chain is connected with a cutter bar 17, a plurality of pushing rollers 16 are mutually hinged, can be stressed to carry out relative rotary motion, and the surface of the pushing roller 16 is smooth, the whole body is a cylindrical metal part, can be stressed to extrude each other, and realizes the transmission of torque, and articulated between a plurality of, can promote roller 16 when the crank arm 2 is crooked and carry out synchronous bending, guiding mechanism promotes the mechanism of punching and punches, when whole snakelike chain atress moves forward, can promote the cutter arbor 17 in the place ahead to move forward.

Specifically, first universal joint 8 passes through the screw thread and is connected with connection housing 7, the two can realize dismantling and separation effect with the help of the screw thread, connection housing 7, the inside of direction casing 3 and first universal joint 8 switches on each other, and the inside of first universal joint 8 is provided with movable chamber 13, make cavity in the first universal joint 8, the inside extension chamber 15 that is provided with of 2 of the bent arm strip of first universal joint 8 and bent arm strip 2 junction, extension chamber 15 is a cavity that possesses the slant wall, and the input of direction cell body 10 is in inside extension chamber 15.

Further, ball 18 is all installed at the both ends that promote roller 16, and ball 18 movable mounting is inside guide groove body 10, and ball 18 is smooth spheroid part, can block in the inside cell body of guide groove body 10, and then realizes the spacing installation effect to promoting roller 16.

Furthermore, a transmission mechanism is installed inside the movable cavity 13, the transmission mechanism comprises a curved rod 14 and a transmission rod 12, the curved rod 14 is installed inside the movable cavity 13 and can be stressed to perform specific movement inside the movable cavity 13, one end of the curved rod 14 is hinged to the serpentine chain so as to apply torque to the serpentine chain, the transmission rod 12 is installed inside the pressing part 5 and can drive the transmission rod 12 to move forwards when the pressing part 5 moves, the transmission rod 12 is large in actual length and is a main transmission part of the whole puncher, one end of the transmission rod 12 extends to the movable cavity 13, the curved rod 14 is connected with the transmission rod 12 through a second universal joint 11 and is acted by the second universal joint 11, the curved rod 14 can rotate around the transmission rod 12, and the curved rod 14 moves forwards for a certain distance along with the transmission rod 12 when the transmission rod 12 moves forwards, so as to achieve torque transmission effect.

The using method of the embodiment comprises the following steps: when a hole needs to be punched in a human body tissue, such as a deep blood vessel, the blood vessel is shielded by a plurality of other human body tissues, different from the existing long and straight hole puncher, a medical worker can hold the main shell 6 with one hand, fingers clamp the holding part 4, a thumb faces the pressing part 5 and is rotated by the first universal joint 8, the crank 14 rotates around the second universal joint 11, the crank 2 rotates angularly and bypasses other human body tissues to go deep into the human body, the crank 14 is tightly pressed against the inner part of the movable cavity 13 of the first universal joint 8 due to excessive angular rotation, at this time, the medical worker can clamp and continuously bend a specific position of the crank 2 by means of medical forceps and the like in order to bypass other human body tissues, after the whole knife discharging shell 1 is bent and extended, the tail end of the knife discharging shell 1 is perpendicular to the blood vessel, and the diameter of the tail end of the crank 2 is small, the medical forceps can be easily inserted into another elongated medical forceps and clamped at the connecting position of the scalpel discharging shell 1 and the crank arm strip 2, the scalpel discharging shell 1 is manually supported, at the moment, the thumb applies torque to the pressing part 5 to overcome the action of a spring to push the pressing part 5 and even the transmission rod 12 to move towards one side, meanwhile, the position of the main shell 6 can be adjusted to ensure that the axis position of the transmission rod 12 and the axis of the crank rod 14 are on the same straight line as possible, the torque transmission rod 12 pushes the crank rod 14 to move forwards, the crank rod 14 extends into the guide groove body 10 through the expansion cavity 15 to extrude a single pushing roller 16, the single pushing roller 16 moves forwards along the guide groove body 10 under the stress of the single pushing roller 16, the pushing roller 16 has the metal strength, the resistance of the material of the crank arm strip 2 is overcome, the torque is transmitted to the next pushing roller 16 until all the pushing rollers 16 move forwards, and the cutter bar 17 is pushed forwards, promote tool bit 9 and derive from play sword casing 1, punch the blood vessel, and whole in-process, for avoiding taking place factors such as deformation when promoting the motion of roller bearing 16 because of factors such as the disturbance of bent arm strip 2, cause the influence to human organ all around, can carry out the centre gripping to it with medical pincers, punch and accomplish the back, loosen and press splenium 5, receive the spring part effect, transfer line 12 resets, even take to go to high 14, promote roller bearing 16 and even cutter arbor 17 and tool bit 9 and reset, the operation of punching next time of being convenient for goes on.

Example 2

The structure of the medical punch capable of being bent at multiple angles in the embodiment is basically the same as that of the medical punch capable of being bent at multiple angles in the embodiment 1, and the difference is that: a lead rod 19 is installed between the transmission rod 12 and the second universal joint 11, and the surface where the lead rod 19 and the transmission rod 12 are connected is provided with threads (see fig. 4). Due to the threaded connection, the first universal joint 8 and the guide shell 3 are separated and detached, and the lead rod 19 and the transmission rod 12 can be detached or connected.

Specifically, a connecting ring 21 is installed at the joint of the lead rod 19 and the transmission rod 12 through threads, and the outer diameter of the threads and the thread tooth parameters at the time are the same, so that the connecting ring 21 can be simultaneously covered on the threads at the joint of the lead rod 19 and the transmission rod 12, the fixed connection effect of the lead rod 19 and the transmission rod 12 is realized, and the surface of the lead rod 19 on one side of the threads is provided with a retaining ring 20, which can limit and shield the movement of the connecting ring 21.

The using method of the embodiment comprises the following steps: according to practical conditions, when the crank arm 2 is not used, the first universal joint 8 and the connecting thread of the guide housing 3 can be manually screwed, so that the separation effect between the first universal joint 8 and the guide housing 3 is realized, after the guide housing 3 is opened, the guide rod 19 and the transmission rod 12 are respectively held by hands, a reverse acting force is applied to the connecting ring 21 along the thread on one side of the check ring 20 to rotate, the connecting ring 21 is far away from the check ring 20, so that the threaded connection effect between the connecting ring 21 and the guide rod 19 is lost, the guide rod 19 is separated from the transmission rod 12, so that the first universal joint 8 and all the components on the first universal joint 8 are detached, and according to practical requirements, a specific long straight component can be connected onto the connecting housing 7 through threads to be used as a general long straight puncher.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (9)

1. A medical hole puncher capable of bending at multiple angles comprises a main shell (6) and a connecting shell (7) installed at one end of the main shell (6), and is characterized in that: connect the one end of casing (7) and install direction casing (3), application of force mechanism is installed to the other end of the main casing body (6), the one end movable mounting of direction casing (3) has first universal joint (8), and installs on first universal joint (8) and crank arm strip (2), crank arm strip (2) one end and install out sword casing (1), and the internally mounted who goes out sword casing (1) has the mechanism of punching, the internally mounted who cranks arm strip (2) has guiding mechanism, and guiding mechanism receives application of force mechanism effect, and guiding mechanism promotes the mechanism of punching and punches.

2. The medical punch capable of bending at multiple angles as claimed in claim 1, wherein: the force application mechanism comprises a holding part (4) and a pressing part (5), the holding part (4) is installed on the surface of the main shell (6), the pressing part (5) is movably installed on one end, far away from the connecting shell (7), of the main shell (6), and the pressing part (5) extends into the main shell (6).

3. The medical punch capable of bending at multiple angles as claimed in claim 1, wherein: the first universal joint (8) is connected with the guide shell (3) through threads, the guide shell (3) is communicated with the inside of the first universal joint (8), a movable cavity (13) is arranged inside the first universal joint (8), and an expansion cavity (15) is arranged inside the crank arm strip (2) at the joint of the first universal joint (8) and the crank arm strip (2).

4. The medical punch capable of bending at multiple angles as claimed in claim 1, wherein: the guiding mechanism comprises a guiding groove body (10) and a serpentine chain, the guiding groove body (10) is installed inside a crank arm strip (2), one end of the guiding groove body (10) extends into a cutter outlet shell (1), the serpentine chain is installed inside the guiding groove body (10) in a limiting mode, and the serpentine chain is formed by mutually hinging and combining pushing rolling shafts (16).

5. The medical punch capable of bending at multiple angles as claimed in claim 4, wherein: both ends of the pushing rolling shaft (16) are provided with rolling balls (18), and the rolling balls (18) are movably arranged inside the guide groove body (10).

6. The medical punch capable of bending at multiple angles as claimed in claim 1, wherein: the punching mechanism comprises a cutter bar (17) and a cutter head (9), the cutter bar (17) is installed inside the cutter outlet shell (1), and the cutter head (9) is installed on one end surface of the cutter bar (17).

7. The medical punch capable of bending at multiple angles as claimed in claim 3 or 4, wherein: have at the internally mounted in activity chamber (13) and install drive mechanism, drive mechanism includes curved bar (14) and transfer line (12), and curved bar (14) are installed in activity chamber (13), and the one end and the snakelike chain of curved bar (14) are articulated, and transfer line (12) are installed in pressing portion (5), and the one end of transfer line (12) extends to activity chamber (13), and is connected through second universal joint (11) between curved bar (14) and transfer line (12).

8. The medical punch capable of bending at multiple angles according to claim 7, wherein: a guide link rod (19) is arranged between the transmission rod (12) and the second universal joint (11), and the surface of the connection part of the guide link rod (19) and the transmission rod (12) is provided with threads.

9. The medical punch capable of bending at multiple angles according to claim 8, wherein: the connecting part of the guide link rod (19) and the transmission rod (12) is provided with a connecting ring (21) through threads, and the surface of the guide link rod (19) on one side of the threads is provided with a retaining ring (20).

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