CN213525363U - Surgical punch device - Google Patents

Abstract

The utility model relates to the field of medical equipment, especially, relate to an operation trompil device, include: the cutting device comprises an installation cylinder, a cutting device and a cutting device, wherein the end face of one end of the installation cylinder is provided with a pushing structure, and the pushing structure comprises a first pushing part and a second pushing part which are used for pushing a to-be-cut object; the connecting shaft can be rotatably arranged in the mounting cylinder in a penetrating mode and can slide in the axial direction of the mounting cylinder; the cutter head is connected to one end of the connecting shaft and is close to the mounting cylinder, the pushing and pressing structure is arranged at one end of the mounting cylinder, and an annular cutting edge is arranged on one side, close to the pushing and pressing structure, of the cutter head. The operation tapping device can ensure that the incision is tidy and the excised tissue can be completely taken out.

Description

Surgical punch device

Technical Field

The utility model relates to the field of medical equipment, especially, relate to an operation trompil device.

Background

In surgical operation, soft tissues (including heart tissues) are required to be punched, for example, a heart chamber auxiliary device is required to be punched at the heart apex position when being implanted, the quality of punching is the key of success or failure of the implantation operation, and an operation punching device which can ensure that an incision is tidy and excised tissues can be completely taken out is the basis of high-quality punching. Accordingly, it is desirable to provide a surgical punch device that ensures that the incision is clean and the resected tissue is completely removed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can guarantee that the incision is neat, the operation trompil device that the excision tissue can take out completely.

The utility model discloses a realize like this:

a surgical opening device comprising:

the cutting device comprises an installation cylinder, a cutting device and a cutting device, wherein the end face of one end of the installation cylinder is provided with a pushing structure, and the pushing structure comprises a first pushing part and a second pushing part which are used for pushing a to-be-cut object;

the connecting shaft can be rotatably arranged in the mounting cylinder in a penetrating mode and can slide in the axial direction of the mounting cylinder;

the tool bit, connect in the one end of connecting axle, and be close to the installation section of thick bamboo is equipped with the one end setting that bulldozes the structure, the tool bit be close to one side that bulldozes the structure is equipped with annular cutting edge, wherein, the connecting axle can drive the tool bit slides, and makes the cutting edge wind the central axis of cutting edge rotates, first portion of pushing away can partly stretch into in the cutting edge, the second portion of pushing away arrives the maximum distance of the central axis of cutting edge is more than or equal to the diameter of the sword end of cutting edge.

Optionally, the second pushing portion is annular, a central axis of the second pushing portion is overlapped with a central axis of the cutting edge, and an inner diameter of the second pushing portion is larger than a diameter of the cutting edge end of the cutting edge;

and/or a gap is reserved between the second pushing part and the edge end of the cutting edge in the axial direction of the mounting cylinder.

Optionally, the first abutting portion includes a plurality of abutting columns, and the plurality of abutting columns can partially extend into the cutting edge and have a gap with an inner wall of the cutting edge.

Optionally, the plurality of support columns are arranged in a common circle, and a central axis of a circle where the plurality of support columns are located coincides with a central axis of the cutting edge.

Optionally, one end of the support column is fixedly connected with the end face of the mounting cylinder, and the other end of the support column is conical.

Optionally, when the first abutting portion extends into the cutting edge, the first abutting portion and the cutting edge are spaced in the axial direction of the mounting cylinder, and the second abutting portion is spaced from the inner wall of the cutting edge.

Optionally, the tool bit includes a pyramid portion with a pyramid tip pointing to a direction away from the pushing structure, a plurality of chambering protrusions are arranged on the pyramid surface of the pyramid portion at intervals, the chambering protrusions surround the central axis of the pyramid portion, and the cutting edge is located on a side of the tool bit away from the pyramid tip.

Optionally, the reaming protrusion is strip-shaped and extends along the cone tip of the cone portion to the cone bottom direction, the height of the reaming protrusion increases and then decreases along the cone tip of the cone portion to the cone bottom direction, and the thickness of the reaming protrusion gradually decreases in a direction away from the cone portion;

and/or three or four reaming bulges are arranged;

and/or the tool bit further comprises a cylindrical part, one end of the cylindrical part is fixedly connected with the cone bottom of the cone part, the cylindrical part is coaxial with the cone part, the cutting edge is arranged at the end part of one end, far away from the cone part, of the cylindrical part, and the connecting shaft penetrates through the cylindrical part and is fixedly connected with the cone part.

Optionally, the surgical tapping device further comprises a limiting end cap and an elastic member, wherein the limiting end cap is connected to one end of the mounting cylinder, which is far away from the pushing structure;

a limiting ring is sleeved on the connecting shaft, is positioned in the mounting cylinder and is limited in the mounting cylinder by the limiting end cover;

the wall surface of the inner cylinder of the installation cylinder is convexly provided with a limiting bulge;

the elastic piece is contained in the installation cylinder and is positioned between the limiting bulges and the limiting rings, one end of the elastic piece is elastically abutted to the limiting bulges, and the other end of the elastic piece is elastically abutted to the limiting rings.

Optionally, the surgical hole opening device further comprises a pull rod connected to the outer cylinder surface of the mounting cylinder, and the extension direction of the pull rod is perpendicular to the central axis of the mounting cylinder.

The technical effects of the utility model are that: with experimental demonstration, the incision that above-mentioned operation trompil device can guarantee the soft tissue is neat, guarantees the incision quality, and above-mentioned operation trompil device is in the soft tissue excision back that will wait to cut, can be with the soft tissue centre gripping under the cutting between installation section of thick bamboo and tool bit to can take out in the lump along with operation trompil device and external, and can not stay internally.

Drawings

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

FIG. 1 is a front view of a surgical punch device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken in the direction AA of FIG. 1;

FIG. 3 is a side view of a surgical punch device according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken in the direction BB in FIG. 3;

fig. 5 is a schematic perspective view of the surgical punch device according to the embodiment of the present invention, wherein the cutter head is in a push-open state;

FIG. 6 is a front view of the surgical punch device according to the embodiment of the present invention, wherein the cutter head is in a push-open state;

fig. 7 is an exploded view of a surgical punch device according to an embodiment of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Mounting cylinder
110	Pushing structure
				111	The first pushing part		Support column
112	The second pushing part
				120	Spacing protrusion
200	Connecting shaft
				210	Spacing ring
300	Cutter head	301	Knife edge
				310	Cylindrical part	320	Cone part
330	Expansion boss
				400	Limit end cover
500	Elastic piece
				600	Pull rod
700	Handle bar

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The embodiment of the utility model provides a surgery trompil device, especially a heart trompil sword.

Referring to fig. 1 and 2, an embodiment of a surgical punch device includes a mounting cylinder 100, a connecting shaft 200, and a cutter head 300.

One end of the mounting tube 100 is provided with a pushing structure 110, and the pushing structure 110 includes a first pushing portion 111 and a second pushing portion 112 for pushing against the object to be cut. In this embodiment, the mounting cartridge 100 serves as a structural support for the entire surgical punch device, for mounting other associated components of the surgical punch device.

The connecting shaft 200 is rotatably inserted into the mounting tube 100, and the connecting shaft 200 can slide in the axial direction of the mounting tube 100.

The cutter head 300 is connected to one end of the connecting shaft 200 and is disposed near one end of the mounting cylinder 100 where the pressing structure 110 is disposed. In one embodiment, the tool bit 300 is detachably connected to the connection shaft 200, for example, by being snapped, screwed, or the like. The side of the cutting head 300 adjacent to the pushing structure 110 is provided with an annular cutting edge 301, and the cutting edge 301 is used for cutting the tissue to be cut. The connecting shaft 200 can drive the cutter head 300 to slide, and the blade 301 rotates around the central axis of the blade 301. The first pushing part 111 can partially extend into the blade 301, and the maximum distance from the second pushing part 112 to the central axis of the blade 301 is greater than or equal to the diameter of the blade end of the blade 301, so that during the cutting of soft tissue by the cutter head 300, the first pushing part 111 and the second pushing part 112 push the soft tissue onto the blade 301, so that the blade 301 rotates to cut the soft tissue to be cut.

The surgical punch device is used for punching holes on human organs or animals. In particular, the soft tissue of a human or animal (e.g., heart tissue) is perforated for subsequent intubation, installation of auxiliary devices (e.g., ventricular assist pumps), and the like. Because soft tissue is soft and easily deformed by force, the cut soft tissue must be removed to avoid infection in vivo. The first pushing part 111 and the second pushing part 112 of the surgical hole opening device can push the soft tissue to the cutting edge 301, so as to ensure the cutting work of the cutting edge 301, and meanwhile, the cut soft tissue can be taken out of the body along with the surgical hole opening device.

Specifically, the surgical punch device is used as follows:

first, a cross-cut is cut in soft tissue using a cutting tool common to the prior art; secondly, the procedure can be changed from the previous procedure by pushing the connecting shaft 200 of the surgical punch device in the initial state shown in fig. 1 to 4 to move in the axial direction of the mounting cylinder 100, so that the cutting head 300 slides in the direction away from the mounting cylinder 100, so that the cutting head 300 is in the pushed-away state (shown in fig. 5); third, the cutting head 300 is passed through the cross cut; fourthly, the worker drives the cutter head 300 to approach the mounting cylinder 100 through the connecting shaft 200 until the first abutting portion 111, the second abutting portion 112 and the cutting edge 301 abut against soft tissues; fifthly, the connecting shaft 200 is rotated to enable the cutting edge 301 to rotate, the cutting edge 301 cuts soft tissues at the inner side of the soft tissues until the cutting edge 301 cuts off the soft tissues in a preset area, the operation tapping device is restored to an initial state (as shown in fig. 1 to 4), and experiments prove that the operation tapping device can ensure that the cut of the soft tissues is neat and ensures the quality of the cut, and at the moment, the cut soft tissues are located in a space formed by the installation cylinder 100 and the cutter head 300 together, the operation tapping device is taken out of the body, the cut soft tissues can be taken out of the body along with the operation tapping device, and therefore the soft tissues cannot be left in the body.

Regarding the specific structure of the pushing structure 110:

in one embodiment, referring to fig. 1 to 7, the second pushing portion 112 is annular, a central axis of the second pushing portion 112 is coincident with a central axis of the cutting edge 301, and an inner diameter of the second pushing portion 112 is larger than a diameter of the cutting edge end of the cutting edge 301. Thus, when the first abutting portion 111 partially extends into the blade 301, the blade 301 is located between the first abutting portion 111 and the second abutting portion 112 in the radial direction. Since the second pushing part 112 is annular, the second pushing part 112 pushes the outer side of the soft tissue to be cut in the cutting process, so that the edge of the soft tissue to be cut is uniformly stressed.

It should be noted that the second pushing portion 112 may be a closed ring, or may be formed by arranging a plurality of protrusions at intervals and making the protrusions be concentric. The inner diameter of the second pushing part 112 may be equal to the diameter of the blade end of the blade 301, and pushing action can be realized to realize soft tissue cutting.

In the axial direction of the mounting barrel 100, a gap is formed between the second pushing part 112 and the edge end of the blade 301, that is, no matter the second pushing part 112 and the edge end of the blade 301 are in the pushing-away state or in the initial state shown in fig. 1 to 4, a gap is always formed between the blade 301 and the second pushing part 112, so as to avoid the blade 301 from being worn due to friction. Specifically, the second pushing portion 112 may be fixedly connected to the mounting barrel 100, and the connection manner may be through welding, integral die-casting, and the like; the second pushing portion 112 may also be detachably connected to the mounting barrel 100, and the connection manner may be a threaded connection, a snap connection, or the like.

In one embodiment, the first pushing portion 111 includes a plurality of pushing posts 1111, and each of the pushing posts 1111 can partially extend into the cutting edge 301 and have a space from the inner wall of the cutting edge 301, so as to prevent the cutting edge from being worn due to the contact between the pushing posts 1111 and the cutting edge 301. Based on this, in the cutting process, one end of the abutting column 1111 is inserted into the soft tissue to be cut, and plays a role in positioning the soft tissue to be cut, so as to avoid the situation that the soft tissue to be cut moves in the cutting process. Specifically, the plurality of buttresses 1111 are arranged in a common circle, and the central axis of the circle where the plurality of buttresses 1111 are located coincides with the central axis of the blade 301. Furthermore, one end of the abutting column 1111 is fixedly connected with the end face of the mounting cylinder 100, the other end of the abutting column 1111 is tapered, and the tapered end portion of the abutting column is easy to insert into soft tissue.

In other embodiments, the first abutting portion 111 may also be an annular structure, a central axis of the first abutting portion 111 coincides with a central axis of the cutting edge 301, and an outer diameter of the first abutting portion 111 is smaller than a diameter of the cutting edge 301. At this time, when cutting soft tissue, one end of the first pushing part 111 away from the mounting tube 100 pushes against the soft tissue.

It should be noted that the second pushing portion 111 is not limited to be annular, and in other embodiments, the second pushing portion 111 may be a protrusion, and a plurality of protrusions are not co-circular, but are disposed around the connecting shaft 200, and at this time, in order to avoid that the second pushing portion 112 will not wear the cutting edge 301 in the cutting process, only the second pushing portion 112 needs to be spaced from the inner wall of the cutting edge 301.

In one embodiment, referring to fig. 1 to 7, the tool bit 300 includes a cylindrical portion 310 and a tapered portion 320 formed at one end of the cylindrical portion 310 and having a tapered tip directed away from the cylindrical portion 310, and the cutting blade 301 is disposed at an end of the cylindrical portion 310 away from one end of the tapered portion 320. The tapered portion 320 can provide some guidance during penetration of the cutting head 300 through soft tissue via a cross-cut. The connecting shaft 200 is inserted into the cylindrical portion 310 and fixed to the tapered portion 320.

It should be noted that in other embodiments, the cutting head 300 may also be tapered throughout its configuration, i.e., the cutting head 300 may not have the cylindrical portion 310, in which case the conical tip of the cutting head 300 points away from the pushing structure 110, and the cutting edge 301 is located on the side of the cutting head 300 away from the conical tip.

The conical surface of the pyramid part 320 is provided with a plurality of hole enlarging protrusions 330 arranged at intervals, the plurality of hole enlarging protrusions 330 are arranged around the central axis of the pyramid part 320, the connecting shaft 200 penetrates through the cylindrical part 310 and is connected with the pyramid part 320, and the hole enlarging protrusions 330 play a role in enlarging the cross incision in the process that the cutter head 300 passes through the cross incision, so that the cutter head 300 can conveniently pass through soft tissues.

Further, bellied 330 of reaming is the strip, and extends to the awl end direction along the awl point of pyramis 320, and the height of bellied 330 of reaming reduces to the awl end direction along the awl point of pyramis 320 increase earlier afterwards, and the bellied 330 of reaming reduces gradually in the direction of keeping away from pyramis 320, so, in the notched in-process of tool bit 300 cross that passes, the bellied 330 of reaming gradually enlarges the cross incision, avoids expanding the cross incision too soon, leads to the condition that the incision appears tearing.

In this embodiment, there are three reaming projections 330. It should be noted that the number of the reaming protrusions 330 is not limited to three, for example, in other embodiments, four reaming protrusions 330 are provided, after the soft tissue is cut into the cross-shaped incision, the soft tissue at the cross-shaped incision is divided into four petal-shaped soft tissues, and during the process that the cutter head 300 is inserted into the soft tissue passed through by the cross-shaped incision, each reaming protrusion 330 is located at the incision between two petal-shaped soft tissues, so that each reaming protrusion 330 is aligned with an incision.

During the specific cutting process of the surgical punch device, i.e. the process of adjusting the surgical punch device from the pushed-away state to the initial state shown in fig. 1 to 4, the blade 301 cuts the soft tissue inside the soft tissue, if there is no other structure assistance, then as the blade 301 cuts, in order to make the blade 301 and the pushing structure 110 approach each other, the worker needs to manually actuate the blade 301 and the pushing structure 110 to approach each other, which causes great inconvenience to the worker.

In order to solve the above problem, in an embodiment, referring to fig. 1 to 7, the surgical punch device further includes a limiting end cap 400 and an elastic member 500, the limiting end cap 400 is connected to one end of the mounting tube 100 away from the pushing structure 110, and the limiting end cap 400 is provided with a through hole; the connection mode between the limiting end cap 400 and the installation cylinder 100 is detachable connection, for example, connection modes such as clamping connection, screw connection and the like. The connecting shaft 200 is sleeved with a limiting ring 210, and the limiting ring 210 is located in the installation cylinder 100 and limited in the installation cylinder 100 by a limiting end cover 400. The inner wall of the installation tube 100 is convexly provided with a plurality of limiting protrusions 120, the limiting protrusions 120 may be annular or may be in the shape of a convex point, for example, the limiting protrusions 120 are in the shape of a convex point, in an embodiment, a plurality of limiting protrusions 120 may be provided, and are circumferentially spaced apart from the inner wall of the installation tube 100. The elastic member 500 is accommodated in the mounting tube 100 and located between the limiting protrusion 120 and the limiting ring 210, one end of the elastic member 500 elastically abuts against the limiting protrusion 120, and the other end elastically abuts against the limiting ring 210. Based on this, after the cutter head 300 is pushed out, after the external force pushing the cutter head 300 is removed, the blade 301 is restored to the direction approaching the mounting barrel 100 under the elastic force of the elastic member 500, and the blade 301 and the pushing structure 110 do not need to be manually actuated by a worker to approach each other, and only the connecting shaft 200 needs to be rotated.

In the present embodiment, the elastic member 500 is a spring. It is understood that the elastic member 500 is not limited to being a spring, and the elastic member 500 may also be an elastic sleeve, etc.

Referring to fig. 1-7, in one embodiment, the surgical punch device further includes a pull rod 600 connected to the outer cylindrical surface of the mounting cylinder 100. This structure is convenient for the staff to realize that the one hand slides tool bit 300 to the direction of keeping away from installation section of thick bamboo 100, is convenient for the staff application of force. Specifically, during the use process, a worker presses one hand against one end of the connecting shaft 200, which is far away from the cutter head 300, hooks the pull rod 600 with fingers, and applies opposite forces to the connecting shaft 200 and the pull rod 600, so that the connecting shaft 200 drives the cutter head 300 to slide in a direction far away from the first cutter edge 301.

Further, the two pull rods 600 are arranged and are connected to the installation cylinder 100, the extending directions of the two pull rods 600 are perpendicular to the central axis of the installation cylinder 100, and the extending directions of the two pull rods 600 are overlapped. This structure is favorable to improving the stability of one-hand application of force.

In one embodiment, the end of the connecting shaft 200 away from the cutter head 300 is provided with a handle 700, and the handle 700 can facilitate the application of force by an operator. Further, the middle part of the handle 700 is provided with a through hole, and the through hole not only can reduce the weight of the operation tapping device, but also can increase the friction between the fingers of the operator and the handle 700, so that the operator can conveniently grip the operation tapping device.

The operation of the surgical punch device is as follows:

first, a cross-cut is cut in soft tissue using a cutting tool common to the prior art;

secondly, pressing the hand against the handle 700, and hooking the two pull rods 600 with two fingers (index finger and middle finger) respectively to apply opposite forces to the handle 700 and the pull rods 600 at the same time, so as to move the connecting shaft 200 of the surgical hole opening device in the initial state shown in fig. 1 to 4 in the axial direction of the mounting cylinder 100, so that the cutter head 300 slides in the direction away from the mounting cylinder 100, and the cutter head 300 is in the push-open state (shown in fig. 4);

third, the cutting head 300 is passed through the cross cut;

fourthly, the handle 700 is held by hand, and the connecting shaft 200 is rotated to enable the blade 301 to cut the tissue until the blade 301 cuts the soft tissue of a preset area;

fifth, the tissue is cut in a space formed by the mounting cylinder 100 and the cutter head 300, the surgical punch is removed from the body, and the cut soft tissue can be removed from the body together with the surgical punch, so that it is not left in the body.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A surgical port device, comprising:

the cutting device comprises an installation cylinder, a cutting device and a cutting device, wherein the end face of one end of the installation cylinder is provided with a pushing structure, and the pushing structure comprises a first pushing part and a second pushing part which are used for pushing a to-be-cut object;

the connecting shaft can be rotatably arranged in the mounting cylinder in a penetrating mode and can slide in the axial direction of the mounting cylinder;

the tool bit, connect in the one end of connecting axle, and be close to the installation section of thick bamboo is equipped with the one end setting that bulldozes the structure, the tool bit be close to one side that bulldozes the structure is equipped with annular cutting edge, wherein, the connecting axle can drive the tool bit slides, and makes the cutting edge wind the central axis of cutting edge rotates, first portion of pushing away can partly stretch into in the cutting edge, the second portion of pushing away arrives the maximum distance of the central axis of cutting edge is more than or equal to the diameter of the sword end of cutting edge.

2. The surgical punch of claim 1 wherein the second abutment is annular, the central axis of the second abutment coincides with the central axis of the blade, and the inner diameter of the second abutment is greater than the diameter of the blade end of the blade;

and/or a gap is reserved between the second pushing part and the edge end of the cutting edge in the axial direction of the mounting cylinder.

3. The surgical punch device of claim 1 wherein the first abutment includes a plurality of abutments each capable of partially extending into the blade and each having a gap with an inner wall of the blade.

4. The surgical punch device of claim 3 wherein the plurality of posts are arranged in a common circle and the center axis of the circle in which the plurality of posts are located coincides with the center axis of the blade.

5. The surgical punch device of claim 3 or 4, wherein one end of the abutment is fixedly connected to the end face of the mounting cylinder, and the other end is tapered.

6. The surgical punch of claim 1 wherein when the first abutment portion extends into the blade, the first abutment portion is spaced from the blade in the axial direction of the mounting cylinder and the second abutment portion is spaced from the inner wall of the blade.

7. The surgical punch of claim 1, wherein the cutting head includes a tapered portion having a tapered tip directed away from the biasing structure, wherein the tapered portion of the tapered portion includes a plurality of spaced-apart counter-bore protrusions disposed thereon, and wherein the plurality of counter-bore protrusions are disposed about a central axis of the tapered portion, and wherein the cutting blade is positioned on a side of the cutting head away from the tapered tip.

8. The surgical punch of claim 7, wherein the counterbore protrusion is strip-shaped and extends in a direction from the tip of the tapered portion to the base of the tapered portion, the height of the counterbore protrusion increases and then decreases in a direction from the tip of the tapered portion to the base of the tapered portion, and the thickness of the counterbore protrusion decreases in a direction away from the tapered portion;

and/or three or four reaming bulges are arranged;

and/or the tool bit further comprises a cylindrical part, one end of the cylindrical part is fixedly connected with the cone bottom of the cone part, the cylindrical part is coaxial with the cone part, the cutting edge is arranged at the end part of one end, far away from the cone part, of the cylindrical part, and the connecting shaft penetrates through the cylindrical part and is fixedly connected with the cone part.

9. The surgical punch device of claim 1, further comprising a retaining cap and a resilient member, the retaining cap being connected to an end of the mounting tube distal from the biasing structure;

a limiting ring is sleeved on the connecting shaft, is positioned in the mounting cylinder and is limited in the mounting cylinder by the limiting end cover;

the wall surface of the inner cylinder of the installation cylinder is convexly provided with a limiting bulge;

the elastic piece is contained in the installation cylinder and is positioned between the limiting bulges and the limiting rings, one end of the elastic piece is elastically abutted to the limiting bulges, and the other end of the elastic piece is elastically abutted to the limiting rings.

10. The surgical port assembly of claim 1, further comprising a pull rod coupled to an outer cylindrical surface of said mounting cylinder, said pull rod extending in a direction perpendicular to a central axis of said mounting cylinder.

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