CN217660047U - Surgical punch device - Google Patents

Abstract

The present application provides a surgical punch device, comprising: the cutter head comprises a holding assembly, a connecting shaft, a shaft protecting piece and a cutter head, wherein the holding assembly is provided with a shaft hole; the connecting shaft is movably arranged in the shaft hole in a penetrating way; the shaft protection piece is arranged on the holding assembly and abuts against the connecting shaft along the radial direction of the connecting shaft; the tool bit is connected to one end of the connecting shaft. The application provides an operation trompil device grips the subassembly and has seted up the shaft hole, and the shaft hole is worn to locate movably to the connecting axle, and the tool bit is connected in the one end of connecting axle, through setting up the axle protection piece in gripping the subassembly, and the radial butt in the connecting axle of axle protection piece edge connecting axle, has reduced the wearing and tearing of connecting axle to reduce the noise that the subassembly activity in-process produced gripping relatively. In addition, the shaft protection piece also realizes the positioning of the connecting shaft, avoids the deflection of the connecting shaft in the moving process, can effectively prevent the collision of the connecting shaft and the holding assembly, prolongs the service life of the operation tapping device and has strong practicability.

Description

Surgical punch device

Technical Field

The application belongs to the technical field of medical equipment, especially, relate to an operation trompil device.

Background

For example, when the ventricular assist device is implanted, the ventricular assist device is inserted into the human body after the hole is punched at the apex of the heart by the punching knife.

The rotating shaft of the existing tapping knife can rub with the knife cylinder in the operation process, so that great noise can be emitted, the rotating shaft is easily abraded, and the service life of the tapping knife is shortened.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present application provides a surgical punch device that is less noisy and has a longer service life.

The embodiment of the present application provides a surgery trompil device, includes:

the holding assembly is provided with a shaft hole;

the connecting shaft is movably arranged in the shaft hole in a penetrating way;

the shaft protection piece is arranged on the holding assembly and abuts against the connecting shaft along the radial direction of the connecting shaft; and

the cutter head is connected to one end of the connecting shaft.

In an embodiment, the holding assembly includes a knife cylinder and a knife body connected with each other, the shaft hole axially penetrates through the knife cylinder, the knife head is located on one side of the knife body, which is far away from the knife cylinder, the knife cylinder and the knife body form a receiving groove, and the shaft protection member is embedded in the receiving groove.

In one embodiment, the blade is removably attached to the cartridge.

In an embodiment, the end surface of the knife cylinder facing the knife body is provided with a threaded hole, the end surface of the knife body facing the knife cylinder is provided with a positioning hole, and the holding assembly further includes a bolt, which passes through the positioning hole and is in threaded fit with the threaded hole.

In one embodiment, the shaft protection member is annular, the shaft protection member is sleeved on the connecting shaft, and an inner wall of the shaft protection member abuts against the connecting shaft.

In an embodiment, the holding assembly further includes a limiting member, the limiting member is connected to one end of the holding assembly, which is away from the tool bit, the connecting shaft is provided with a fixing protrusion located in the shaft hole, and the limiting member is disposed on a moving path of the fixing protrusion.

In an embodiment, the holding assembly is provided with a first boss, the first boss is located in the shaft hole, the connecting shaft is inserted into the limiting member, the shaft hole and the first boss, and the holding assembly further includes an elastic member, which is disposed between the fixing protrusion and the first boss.

In an embodiment, the limiting member has a limiting through hole, the first boss has a avoiding through hole, the avoiding through hole is coaxial with the limiting through hole, the aperture of the limiting through hole and the aperture of the avoiding through hole are smaller than the aperture of the shaft hole, and the connecting shaft is inserted through the limiting through hole, the shaft hole and the avoiding through hole.

In an embodiment, the holding assembly further includes a second boss, the shaft protection member includes a first ring and a second ring, the first ring is connected to an outer circumferential surface of the second ring, the first ring abuts against between the first boss and the second boss, and the second ring abuts against between the second boss and the connecting shaft.

In one embodiment, the shaft protector is a plastic part.

The application provides an operation trompil device grips the subassembly including gripping subassembly, connecting axle, axle protection piece and tool bit, grips the subassembly and has seted up the shaft hole, and the shaft hole is worn to locate movably to the connecting axle, and the tool bit is connected in the one end of connecting axle, through setting up axle protection piece in gripping the subassembly, and the axle protection piece has reduced the wearing and tearing of connecting axle along the radial butt in the connecting axle of connecting axle to reduce the connecting axle and grip the noise that the subassembly activity in-process produced relatively. In addition, the shaft protection piece also realizes the positioning of the connecting shaft, avoids the deflection of the connecting shaft in the moving process, can effectively prevent the collision of the connecting shaft and the holding assembly, prolongs the service life of the operation tapping device and has strong practicability.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a front view of a surgical port opening device provided in an embodiment of the present application.

Fig. 2 is an exploded view of the surgical punch device shown in fig. 1.

Fig. 3 is a cross-sectional view at X-X in fig. 1.

Fig. 4 is a partial enlarged view of fig. 3 at B.

Fig. 5 is a cross-sectional exploded view of the surgical punch device shown in fig. 3.

Fig. 6 is a partial enlarged view of fig. 5 at C.

FIG. 7 is a front view of the surgical punch device shown in FIG. 1 with the cutting head extended.

The designations in the figures mean:

100. a surgical punch device;

1. a gripping assembly; 11. a shaft hole;

12. a knife cylinder; 121. a threaded hole; 122. accommodating a tank; 13. a blade body; 131. positioning holes; 132. a second boss;

14. a bolt; 15. a limiting member;

151. a limiting through hole; 16. a first boss; 161. avoiding through holes; 17. an elastic member; 18. a pull rod;

2. a connecting shaft; 21. a handle; 22. a fixed protrusion;

3. a shaft protector; 31. a first ring body; 32. a second ring body;

4. a cutter head.

Detailed Description

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

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," and the like refer to an orientation or positional relationship based on that shown in the drawings for ease of description and simplicity of description only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only 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 one or more of that feature. In the description of the present application, "a plurality" means two or more unless explicitly defined otherwise.

The inventor of this application discovers that current trompil sword includes structures such as pivot, tool bit and a sword section of thick bamboo usually, and wherein, the pivot is located to a sword section of thick bamboo cover, and the tool bit is connected in the one end of a sword section of thick bamboo, and the pivot is connected with the tool bit and can rotate relative to a sword section of thick bamboo, and the rotation of driving the tool bit through the rotation of pivot to punch on human tissue. However, the rotating shaft of the existing tapping knife can generate friction with the knife cylinder in the operation process, so that not only can relatively large noise be emitted, but also the rotating shaft is easily abraded, and the service life of the tapping knife is shortened.

In order to improve at least part of the above problems, the applicant proposed a surgical punch device for punching a hole in a human tissue and taking out a cut component, which can effectively prevent a connecting shaft from colliding with a holding component during use, improve the service life of the surgical punch device, and reduce noise.

The surgical punch device provided by the utility model is described in detail with reference to the specific embodiment and the attached drawings.

Referring to fig. 1, 2 and 3, an embodiment of the present disclosure provides an operation tapping device 100, including a holding assembly 1, a connecting shaft 2, a shaft protector 3 and a cutter head 4, wherein the holding assembly 1 is provided with a shaft hole 11; the connecting shaft 2 is movably arranged in the shaft hole 11 in a penetrating way; the shaft protection piece 3 is arranged on the holding assembly 1, and the shaft protection piece 3 abuts against the connecting shaft 2 along the radial direction of the connecting shaft 2; the cutter head 4 is connected to one end of the connecting shaft 2.

The holding assembly 1 is a mounting base structure of the connecting shaft 2, the shaft protector 3 and the cutter head 4, i.e. the connecting shaft 2, the shaft protector 3 and the cutter head 4 can be mounted on the holding assembly 1. The gripping assembly 1 is adapted to be held by a user, for example, when using the surgical opening device 100 provided herein, the user can hold the gripping assembly 1 by hand and then operate the connecting shaft 2 and the cutter head 4. The shaft hole 11 is formed in the holding assembly 1, the shaft hole 11 is formed in the axial direction of the holding assembly 1, and the shaft hole 11 is communicated with the outside.

The connecting shaft 2 is movably inserted into the shaft hole 11, in this embodiment, the connecting shaft 2 can slide along the axial direction of the shaft hole 11 to drive the tool bit 4 to extend (as shown in fig. 7) or retract relative to the holding assembly 1, and the connecting shaft 2 can also rotate along the circumferential direction of the shaft hole 11 to drive the tool bit 4 to rotate, so as to cut human tissue; the diameter of the connecting shaft 2 is smaller than the bore diameter of the shaft hole 11, i.e. there is a space between the connecting shaft 2 and the inner wall of the shaft hole 11. The opposite ends of the connecting shaft 2 extend out of the holding component 1, one end of the connecting shaft is used for connecting the cutter head 4, and the other end of the connecting shaft is convenient for a user to operate.

The cutter head 4 is connected to one end of the connecting shaft 2, so that the cutter head 4 can slide along the axial direction of the shaft hole 11 under the driving of the connecting shaft 2 and can also rotate along the circumferential direction of the shaft hole 11.

In this embodiment, the tool bit 4 may be fixedly connected to one end of the connecting shaft 2, so that the tool bit 4 can slide axially or rotate circumferentially along with the connecting shaft 2, wherein the connecting manner may be welding, bonding, or plugging. In an embodiment, the cutter head 4 can be detachably connected to one end of the connecting shaft 2, and the cutter head 4 and the connecting shaft 2 can be conveniently detached and replaced.

The shaft protection piece 3 is provided with the holding assembly 1, the shaft protection piece 3 abuts against the connecting shaft 2 along the radial direction of the connecting shaft 2, abrasion of the connecting shaft 2 is reduced, and noise generated in the moving process of the connecting shaft 2 relative to the holding assembly 1 is reduced. In addition, the shaft protection piece 3 also realizes the positioning of the connecting shaft 2, avoids the deflection of the connecting shaft 2 in the moving process, can effectively prevent the collision of the connecting shaft 2 and the holding assembly 1, prolongs the service life of the operation tapping device 100 and has strong practicability.

In the present embodiment, the shaft protector 3 may be annular, and the annular inner wall of the shaft protector 3 may be fitted to the connecting shaft 2 so as to position the connecting shaft 2. In one embodiment, the shaft protector 3 may also be a multi-segment arc structure connected to the holding assembly 1 along the circumference of the shaft hole 11, and each segment of arc structure abuts against the connecting shaft 2 and positions the connecting shaft 2. In other embodiments, the shaft protector 3 may have other shapes, and the purpose of protecting the connecting shaft 2 and positioning the connecting shaft 2 to prevent the connecting shaft 2 from colliding with the inner wall of the shaft hole 11 may be satisfied.

The action process of the embodiment is as follows: the user holds the holding assembly 1 by hands and enables the cutter head 4 to be opposite to the target part of the patient; then the connecting shaft 2 is pushed along the axial direction of the shaft hole 11 and the cutter head 4 enters the body of the patient; the connecting shaft 2 is rotated, so that the cutter head 4 is driven to cut human tissues in the body of a patient, and the cut human tissues are remained in a space between the cutter head 4 and the holding component 1; the assembly 1 is then held in the hand and the surgical punch device 100 is moved away from the patient, thereby removing the cutting head 4 from the patient and simultaneously removing the cut assembly.

In the above process, the connecting shaft 2 is always abutted and positioned by the shaft protector 3, so that the connecting shaft 2 can keep stable in position in the sliding and rotating processes and cannot collide with the inner wall of the shaft hole 11.

The beneficial effect of this embodiment lies in: the butt has been set up in the axle protection piece 3 of connecting axle 2, fix a position connecting axle 2 through axle protection piece 3, make connecting axle 2 slide with rotatory in-process homoenergetic keep the stability of position, ensure that tool bit 4 can get into the patient in accurate position and internal and can not take place the skew, also guaranteed simultaneously connecting axle 2 can not collide with the inner wall in shaft hole 11, thereby the appearance of noise has been reduced, the impaired and life-span reduction's of connecting axle 2 that the collision of connecting axle 2 and shaft hole 11 inner wall leads to the condition has also been avoided.

Referring to fig. 1, 2 and 3, in an embodiment, the holding assembly 1 includes a knife cylinder 12 and a knife body 13, the knife cylinder 12 and the knife body 13 are both cylindrical, the knife cylinder 12 is provided with a shaft hole 11, for example, the shaft hole 11 axially penetrates through the knife cylinder 12; the blade 13 is connected to one end of the cartridge 12, e.g. the blade 13 is located between the cutting head 4 and the cartridge 12, i.e. the cutting head 4 is located on the side of the blade 13 facing away from the cartridge 12.

The knife cylinder 12 and the knife body 13 form a receiving groove 122, and the receiving groove 122 is used for receiving the shaft protector 3, for example, the shaft protector 3 can be embedded in the receiving groove 122. In the present embodiment, the receiving groove 122 is an annular groove. In other embodiments, the receiving groove 122 may also be an arc-shaped groove or a groove with other shapes, which is sufficient for the purpose of being able to receive the shaft protector 3.

In this embodiment, the knife body 13 is detachably connected to the knife cylinder 12, and the detachable connection manner of the knife body 13 and the knife cylinder 12 may be a bolt connection, a snap connection, or other various detachable connection manners. The detachable connection of the knife body 13 and the knife cylinder 12 can compress the shaft protection member 3 in the accommodating groove 122, so that the shaft protection member 3 can be conveniently replaced and installed while being fixed. When the blade 13 is connected to the knife cylinder 12, the blade 13 presses the shaft protection member 3 into the receiving groove 122, and the shaft protection member 3 is fixed in the receiving groove 122 under the combined action of the blade 13 and the inner wall of the receiving groove 122.

In this embodiment, an end of the blade body 13 facing the cutting head 4 is provided with a receiving cavity, and a part of the cutting head 4 is received in the receiving cavity in an initial state, wherein the initial state refers to a state when the surgical punch device 100 is not used, and the cutting head 4 is closest to the blade body 13.

Referring to fig. 4, 5 and 6, in one embodiment, the blade 13 is connected to the knife cylinder 12 by a bolt. The grip assembly 1 further comprises a bolt 14, and the blade body 13 is connected to the knife cylinder 12 through the bolt 14.

A threaded hole 121 is formed in the end face, facing the knife body 13, of the knife cylinder 12, and threads are formed in the inner wall of the threaded hole 121; one end of the knife body 13 facing the knife cylinder 12 is provided with a positioning hole 131; when the blade 13 is mounted on the tool holder 12, the positioning hole 131 is coaxially aligned with the threaded hole 121, one end of the bolt 14 passes through the positioning hole 131 and is placed in the threaded hole 121, and the bolt 14 is engaged with the thread in the threaded hole 121.

When it is necessary to install or replace the shaft protector 3, the bolts 14 are unscrewed from the threaded holes 121, and the bolts 14 are taken out from the positioning holes 131; then the knife body 13 is taken down from the knife cylinder 12, and the shaft protection piece 3 is placed on the end surface of the knife cylinder 12; then, the blade 13 is abutted against the cylinder 12 and the shaft protector 3 is pressed, so that one end of the bolt 14 passes through the positioning hole 131 and is fixed in the threaded hole 121.

Referring to fig. 3 to 6, in an embodiment, the holding assembly 1 further includes a limiting member 15, the limiting member 15 is used to fix the connecting shaft 2 at a certain position, the limiting member 15 is connected to an end of the knife cylinder 12 away from the knife body 13, and the limiting member 15 can limit the connecting shaft 2. In this embodiment, the retaining member 15 is detachably connected to the tool cylinder 12, for example, by snapping, screwing, or other connecting means.

Referring to fig. 3, fig. 4 and fig. 6, in the present embodiment, the limiting member 15 is provided with a limiting through hole 151, the connecting shaft 2 is provided with a fixing protrusion 22, and the connecting shaft 2 passes through the limiting through hole 151 and thus passes through the limiting member 15. The aperture of the limiting through hole 151 is smaller than that of the shaft hole 11, so that the fixing protrusion 22 is prevented from being separated from the shaft hole 11, thereby limiting the position of the connecting shaft 2 and preventing the connecting shaft 2 from being separated from the shaft hole 11.

In the present embodiment, the holding assembly 1 is provided with a first projection 16, and the first projection 16 is located in the shaft hole 11 and is disposed at an end of the knife cylinder 12 facing the knife body 13. The first boss 16 is provided with a clearance through hole 161, and the connecting shaft 2 passes through the clearance through hole 161 and then passes through the first boss 16. The clearance through hole 161 has a smaller diameter than the shaft hole 11, and is provided to allow the elastic member 17 to abut against the first boss 16.

In this embodiment, the holding assembly 1 further has a second boss 132, the second boss 132 is used for the connection shaft 2 to pass through, and the second boss 132 is further used for clamping the shaft protection member 3, so that the shaft protection member 3 is located between the second boss 132 and the connection shaft 2, that is, the sidewall of the second boss 132 abuts against the sidewall of the side of the shaft protection member 3 departing from the connection shaft 2.

Referring to fig. 4 and 6, in one embodiment, the second protrusion 132 is disposed on the knife body 13 and connected to an end of the knife body 13 facing the knife cylinder 12, and when the knife body 13 is mounted on the knife cylinder 12, the second protrusion 132 presses the shaft protection member 3 into the receiving groove 122.

The holding assembly 1 further comprises an elastic member 17, the elastic member 17 is disposed in the shaft hole 11, and the aperture of the avoiding through hole 161 is smaller than that of the shaft hole 11, so that the elastic member 17 can abut against the first boss 16, for example, one end of the elastic member 17 abuts against the fixed protrusion 22 and the other end abuts against the first boss 16, the elastic member 17 is used for automatically retracting and abutting the tool bit 4 against the tool body 13, and the first boss 16 is always located in the shaft hole 11 during the axial movement of the connecting shaft 2 along the shaft hole 11. In this embodiment, the elastic member 17 is sleeved on the connecting shaft 2.

By providing the resilient member 17, the surgical punch device 100 provided herein is automatically retractable with respect to the holder assembly 1 when not in use. For example, after the cutting head 4 completes the perforation and removes the tissue, the cutting head 4 can be returned to the original state. When the surgical hole opening device 100 is in an initial state, the elastic member 17 is in a natural state, wherein the natural state of the elastic member 17 refers to a state in which the elastic member 17 is not deformed, and at this time, if an external force acts on the connecting shaft 2 to drive the tool bit 4 to move in a direction away from the tool body 13, the elastic member 17 is pressed and generates an elastic force; when the external force acting on the connecting shaft 2 is removed, the elastic piece 17 restores and drives the connecting shaft 2 and the cutter head 4 to retract relative to the holding assembly 1, so that the cutter head 4 is reset.

In the present embodiment, the elastic member 17 may be a spring. In other embodiments, the elastic member 17 may be other various types of elastic members.

In the present embodiment, the grip assembly 1 further includes a pull rod 18, the pull rod 18 is connected to the sidewall of the knife cylinder 12, for example, the pull rod 18 can be fixedly connected to the knife cylinder 12 by welding or the like. The provision of the pull rod 18 facilitates the user's manipulation of the surgical punch device 100. In the present embodiment, the number of the pull rods 18 is two, two pull rods 18 are connected to the knife cylinder 12, and the two pull rods 18 are arranged at an angle of approximately 180 ° therebetween, so that the user can operate the surgical opening device 100 with one hand, for example, the user can hook the two pull rods 18 with two fingers and apply force to the two pull rods 18, so as to push the knife head 4 outwards.

In this embodiment, one end of the connecting shaft 2 departing from the cutter head 4 is connected with a handle 21, and a user can drive the connecting shaft 2 to slide or rotate through the handle 21 and drive the cutter head 4 to rotate synchronously.

The connecting shaft 2 is provided with a fixing protrusion 22, the fixing protrusion 22 is located in the shaft hole 11, and the limiting member 15 is disposed on a moving path of the fixing protrusion 22, so that the fixing protrusion 22 cannot be separated from the shaft hole 11 through the limiting member 15 under the action of the limiting member 15.

Referring to fig. 4, 5 and 6, in an embodiment, the shaft protection member 3 is ring-shaped, the shaft protection member 3 is sleeved on the connecting shaft 2, and an inner wall of the shaft protection member 3 abuts against the connecting shaft 2, that is, an inner diameter of the shaft protection member 3 is smaller than an aperture of the shaft hole 11, and an outer wall of the shaft protection member 3 is attached to an inner wall of the receiving groove 122. Under the action of the shaft protector 3, the connecting shaft 2 can only slide along the axial direction or rotate along the circumferential direction of the shaft hole 11, and cannot swing and collide with the inner wall of the shaft hole 11 during the sliding or rotating process.

In this embodiment, the shaft protection member 3 includes a first ring member 31 and a second ring member 32, both the first ring member 31 and the second ring member 32 are annular, the first ring member 31 is connected to the outer peripheral surface of the second ring member 32, the first ring member 31 abuts between the first boss 16 and the second boss 132, specifically, one side of the first ring member 31 abuts against the first boss 16, and one side of the first ring member 31 facing away from the first boss 16 abuts against the second boss 132, the first ring member 31 is fixed between the knife cylinder 12 and the knife body 13 under the common clamping action of the first boss 16 and the second boss 132, that is, the shaft protection member 3 is stably fixed in the holding assembly 1 by the first ring member 31 abutting between the first boss 16 and the second boss 132; the second ring body 32 abuts between the second boss 132 and the connecting shaft 2, that is, the annular inner wall of the second ring body 32 abuts on the connecting shaft 2, the annular outer wall of the second ring body 32 opposite to the annular inner wall abuts on the second boss 132, and the second ring body 32 is used for protecting the connecting shaft 2, that is, the second ring body 32 can protect the connecting shaft 2 from being worn, and prevent the connecting shaft 2 from deflecting, so as to protect the connecting shaft 2 from colliding with the inner wall of the shaft hole 11 or the first boss 16 or the second boss 132.

In one embodiment, the first ring 31 and the second ring 32 are integrally formed. In another embodiment, the first ring member 31 and the second ring member 32 can be separate components and can be fixedly connected together by machining, for example, the first ring member 31 can be bonded or otherwise connected to the second ring member 32.

In one embodiment, the outer diameter of the first ring 31 is larger than the outer diameter of the second ring 32 to ensure that the first ring 31 can contact with the first and second bosses 16, 132 sufficiently to ensure that the shaft protector 3 can be stably fixed in the grip assembly 1.

In this embodiment, the inner diameter of the second boss 132 is smaller than or equal to the outer diameter of the second ring body 32, so that the second ring body 32 can be clamped in the second boss 132, and the second ring body 32 can prevent the connecting shaft 2 from colliding or rubbing against the inner wall of the second boss 132.

In this embodiment, shaft protection piece 3 is the plastic part, and the plastic has the insulation, it is corrosion-resistant, thermal-insulated and have non-magnetic property, light in weight's characteristic, and it is lower to have longer life and cost, can also effectually play the positioning action to connecting axle 2, avoid connecting axle 2 deflection to appear at the activity in-process, prevent the inner wall in connecting axle 2 collision or friction shaft hole 11, in order to improve the life of connecting axle 2, eliminate the noise that friction or collision brought simultaneously. In other embodiments, the shaft protection member 3 may be made of acrylic material, rubber material or other materials, so as to satisfy the purpose of protecting the connecting shaft 2.

In this embodiment, the cutter head 4 is detachably connected to the connecting shaft 2, for example, the cutter head 4 may be inserted into the connecting shaft 2 or screwed with the connecting shaft 2. The tool bit 4 and the limiting piece 15 are respectively arranged at two opposite ends of the connecting shaft 2, and if the connecting shaft 2 needs to be taken out, the tool bit 4 and the limiting piece 15 only need to be dismounted, so that the connecting shaft 2 is convenient to replace.

The action process of the application is as follows: firstly, cutting a cross-shaped incision on human tissue by a common cutting tool in the prior art; then the cutter head 4 is opposite to the target part of the patient; then, the user can press the hand against the handle 21, hook the two pull rods 18 respectively through two fingers and apply force to the two pull rods 18, push the handle 21 to extend the cutter head 4 relative to the holding assembly 1 (as shown in fig. 7), and extend the cutter head 4 into the body of the patient, at this time, the elastic member 17 is compressed; then the connecting shaft 2 is rotated, so that the cutter head 4 is driven to cut human tissues in the body of a patient, and the cut human components are remained in a space between the cutter head 4 and the cutter body 13; the connecting shaft 2 is loosened, the elastic piece 17 is restored, and the cutter head 4 retracts relative to the holding assembly 1 under the action of the elastic piece 17; finally, the surgical punch device 100 is removed from the patient and the cut tissue is removed.

To sum up, the operation trompil device 100 that this application embodiment provided is including holding subassembly 1, connecting axle 2, axle protection piece 3 and tool bit 4, hold subassembly 1 and seted up shaft hole 11, connecting axle 2 movably wears to locate shaft hole 11, tool bit 4 is connected in the one end of connecting axle 2, through setting up axle protection piece 3 in holding subassembly 1, and axle protection piece 3 along connecting axle 2 radial butt in connecting axle 2, the wearing and tearing of connecting axle 2 have been reduced to reduce connecting axle 2 and hold the noise that subassembly 1 activity in-process produced relatively. In addition, the shaft protection piece 3 also realizes the positioning of the connecting shaft 2, avoids the deflection of the connecting shaft 2 in the moving process, can effectively prevent the collision of the connecting shaft 2 and the holding assembly 1, prolongs the service life of the operation tapping device 100 and has strong practicability.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present application, and they should be construed as being included in the present application.

Claims (10)

1. A surgical port device, comprising:

the handle component (1), the handle component (1) is provided with a shaft hole (11);

the connecting shaft (2) is movably arranged in the shaft hole (11) in a penetrating manner;

the shaft protection piece (3) is arranged on the holding assembly (1), and the shaft protection piece (3) abuts against the connecting shaft (2) along the radial direction of the connecting shaft (2); and

the cutter head (4) is connected to one end of the connecting shaft (2).

2. The surgical opening device according to claim 1, wherein the holding assembly (1) comprises a knife cylinder (12) and a knife body (13) which are connected, the shaft hole (11) axially penetrates through the knife cylinder (12), the knife head (4) is positioned on the side of the knife body (13) facing away from the knife cylinder (12), the knife cylinder (12) and the knife body (13) form a receiving groove (122), and the shaft protection member (3) is embedded in the receiving groove (122).

3. The surgical opening device according to claim 2, wherein the blade (13) is removably connected to the knife cylinder (12).

4. The surgical opening device according to claim 3, wherein the knife cylinder (12) has a threaded hole (121) opened on an end surface facing the knife body (13), the knife body (13) has a positioning hole (131) opened on an end surface facing the knife cylinder (12), the holding assembly (1) further comprises a bolt (14), and the bolt (14) passes through the positioning hole (131) and is in threaded fit with the threaded hole (121).

5. The surgical punch device according to claim 1, wherein the shaft protector (3) is ring-shaped, the shaft protector (3) is sleeved on the connecting shaft (2) and an inner wall of the shaft protector (3) abuts against the connecting shaft (2).

6. The surgical opening device according to claim 1, wherein the holding assembly (1) further comprises a limiting member (15), the limiting member (15) is connected to an end of the holding assembly (1) facing away from the cutter head (4), the connecting shaft (2) is provided with a fixing protrusion (22) located in the shaft hole (11), and the limiting member (15) is disposed on a moving path of the fixing protrusion (22).

7. The surgical punch device according to claim 6, wherein the holding assembly (1) is provided with a first boss (16), the first boss (16) is located in the shaft hole (11), the connecting shaft (2) is arranged through the limiting member (15), the shaft hole (11) and the first boss (16), the holding assembly (1) further comprises an elastic member (17), and the elastic member (17) is arranged between the fixing protrusion (22) and the first boss (16).

8. The surgical tapping device according to claim 7, wherein the limiting member (15) is provided with a limiting through hole (151), the first boss (16) is provided with a avoiding through hole (161), the avoiding through hole (161) is coaxial with the limiting through hole (151), the limiting through hole (151) and the avoiding through hole (161) are both smaller than the shaft hole (11), and the connecting shaft (2) is inserted into the shaft hole (11), the limiting through hole (151) and the avoiding through hole (161).

9. The surgical opening device according to claim 8, wherein the holding member (1) further comprises a second protrusion (132), the shaft protection member (3) comprises a first ring (31) and a second ring (32), the first ring (31) is connected to an outer circumferential surface of the second ring (32), the first ring (31) abuts between the first protrusion (16) and the second protrusion (132), and the second ring (32) abuts between the second protrusion (132) and the connecting shaft (2).

10. The surgical punch device according to any one of claims 1 to 9, wherein the shaft protector (3) is a plastic part.

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