CN211433072U

CN211433072U - Skull base supporting device for surgical operation

Info

Publication number: CN211433072U
Application number: CN201922498491.8U
Authority: CN
Inventors: 张伟
Original assignee: Guangzhou Keyue Biological Technology Co ltd
Current assignee: Guangzhou Anze Regeneration Medical Science Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-08
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to the technical field of medical equipment, a basis cranii strutting arrangement that surgery operation was used is disclosed, it includes propelling movement sleeve, support piece and receive and releases the subassembly, first through-hole has been seted up along its length direction to the propelling movement sleeve, support piece can install with inserting and drawing in the first through-hole, it connects to receive and release the subassembly support piece is close to one side of the first end of first through-hole can drive support piece switches between expansion state and closed state, works as when support piece is located expansion state, support piece is located outside the second end of first through-hole, just support piece expandes, works as when support piece is located closed state, support piece is located in the first through-hole, just support piece contracts. The utility model provides a basis cranii strutting arrangement that surgical operation used can effectively support basis cranii part soft tissue, provides comparatively abundant apparatus operating space for the art person.

Description

Skull base supporting device for surgical operation

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a skull base supporting device for surgical operation.

Background

Clinically, craniopharyngeal tubular tumors, anterior skull base meningiomas, olfactory neuroblastoma, pituitary tumors and the like are some common brain tissue tumor diseases, particularly, the pituitary tumors are common and account for 10% -15% of central nervous system tumors, and the common clinical incidence rate is about 1/10 ten thousand. Such brain tissue tumors are usually located in the skull base of human head, and the physiological structure of the region is very complex, and important nerves and blood vessels pass through the region. Therefore, operations involving the skull base part are accompanied by various risks, such as damaging important blood vessels and nerves due to careless operation and generating new nerve injury symptoms, so that the operations need to provide excellent auxiliary operation tools for medical staff.

With the continuous progress of new neurosurgical techniques in the last decade, the concept of minimally invasive surgery has been well known and accepted by most neurosurgeons and has found widespread application in the field of cranial base surgery. When the nerve endoscope technology is used for excising the skull base tumor, the problems of narrow operation space, existence of various tissues and the like can be met, the difficulty of operation is increased, and the wide popularization and application of the operation are also limited.

In order to solve the problem of the operation, a soft tissue supporting device which can enter the skull base of the brain through the nose is urgently needed, the soft tissue of the skull base part can be effectively supported, a relatively abundant instrument operation space is provided for an operator, and peripheral blood vessels and nerve tissues are prevented from being injured by mistake in the operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: provides a skull base supporting device for surgical operation, which can effectively support the soft tissue of the skull base part and provide a relatively abundant instrument operating space for an operator.

In order to achieve the above object, the present invention provides a skull base supporting device for surgical operation, which includes a pushing sleeve, a supporting member and a retracting assembly, wherein the pushing sleeve has a first through hole along its length direction, the supporting member is installed in the first through hole in a pluggable manner, the retracting assembly is connected to one side of the first end portion of the first through hole, the supporting member is capable of driving the switching between the unfolding state and the closing state of the supporting member, when the supporting member is located in the unfolding state, the supporting member is located outside the second end portion of the first through hole, and the supporting member is unfolded, when the supporting member is located in the closing state, the supporting member is located in the first through hole, and the supporting member is retracted.

Preferably, the retraction assembly comprises a push rod and at least one first pulling line, the push rod is installed in the first through hole in a pluggable manner, the push rod is provided with a second through hole along the length direction of the push rod, the supporting member extends out of one end of the second through hole, one end of the first pulling line is fixedly connected to one side of the supporting member close to the first end portion of the first through hole, and the other end of the first pulling line penetrates out of the second through hole.

Preferably, the retraction assembly further comprises at least two first support lines, each of the first support lines is uniformly distributed on the support, and one end of each of the first support lines is fixedly connected with one side of the support.

Preferably, the retraction assembly further comprises a second pulling line, one end of the second pulling line is fixedly connected with each first supporting line, and the other end of the second pulling line penetrates through the second through hole and extends out of the second through hole.

Preferably, the second pulling line is connected to the first supporting line through a connecting line, one end of the connecting line is fixedly connected to the first supporting line, and the other end of the connecting line is fixedly connected to one end of the second pulling line.

Preferably, the retraction assembly further comprises at least one second supporting line, one end of the second supporting line is fixedly connected with the other end of any one of the first supporting lines, and the other end of the second supporting line is fixedly connected with the other end of the other first supporting line.

Preferably, a first end of the first through hole is provided with a limiting convex part, and the limiting convex part protrudes towards the axial direction of the pushing sleeve.

Preferably, one end of the pushing sleeve, which is far away from the limiting convex part, is provided with a concave part, and the concave part is concave towards the limiting convex part.

Preferably, the material of the supporting piece is a shape memory alloy.

Preferably, the cross-sectional shape of the supporting member is a mesh or an ellipse or a circle or a polygon.

The embodiment of the utility model provides a basis cranii strutting arrangement that surgery used compares with prior art, and its beneficial effect lies in: receive and release the subassembly and connect on support piece, but support piece plug ground movable mounting is in the first through-hole of propelling movement sleeve. By operating the retraction assembly, the supporting piece extends out of the pushing sleeve and is unfolded to support the special tissue of the skull base or is retracted into the first through hole of the pushing sleeve, so that the skull base supporting device for the surgical operation can be withdrawn out of the body. This basis cranii strutting arrangement that surgery used constructs simply, and convenient to use does not have any foreign matter to keep somewhere internal at the patient, and the security is high, can effectively improve the quality of scope operation, is comparatively practical auxiliary instrument.

Drawings

FIG. 1 is a schematic structural view of a surgical skull base support device according to an embodiment of the present invention;

FIG. 2 is a schematic view of the connection between the support member and the retraction assembly (lacking a push rod) in the deployed state of the embodiment of the present invention;

fig. 3 is a schematic view of the connection between the support member and the retraction assembly (lacking a push rod) in the closed state according to the embodiment of the present invention.

In the figure, 1, push the bush; 2. a support member; 3. a retraction assembly; 31. a push rod; 32. a first pull line; 33. a first support line; 34. a second pull line; 35. a connecting wire; 36. a second support line; 4. a first through hole; 5. a second through hole; 6. a limiting convex part; 7. a recess; 8. a round table.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms used in the present invention are used in the description of the present invention, and it should be understood that the terms "center", "upper", "inner", "outer" and the like used in the present invention are used only for convenience of description and simplification of the present invention based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, 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.

As shown in fig. 1 to 3, the skull base supporting device for surgical operation according to the preferred embodiment of the present invention includes a pushing sleeve 1, a supporting member 2 and a retraction assembly 3, wherein the pushing sleeve 1 has a first through hole 4 along the length direction thereof, the supporting member 2 is installed in the first through hole 4 in a pluggable manner, the retraction assembly 3 is connected to one side of the supporting member 2 close to the first end of the first through hole 4, and can drive the supporting member 2 to switch between an unfolding state and a closing state, when the supporting member 2 is located in the closing state, the supporting member 2 is located in the first through hole 4, and the supporting member 2 contracts, when the supporting member 2 is located in the unfolding state, the supporting member 2 is located outside the second end of the first through hole 4, and the supporting member 2 unfolds to support the skull base soft tissue.

Based on the above technical solution, the pushing sleeve 1 is preferably a cylindrical sleeve with a shape, and the size of the pushing sleeve is small, so that the pushing sleeve can enter the nasal cavity of a patient. The push sleeve 1 has a first end corresponding to the first end of the first through hole 4 and a second end corresponding to the second end of the first through hole 4. The first through hole 4 penetrates through the pushing sleeve 1, and the supporting member 2 is movably inserted in the first through hole 4. The supporting member 2 is a sheet-like object with certain elasticity, and when the supporting member is located in the first through hole 4, the supporting member is compressed by the pressure of the two side walls of the first through hole 4 to be in a closed state. When the support 2 is positioned outside the first through hole 4, it is free to expand and can be used to support the tissue of the patient. The side of the support 2 close to the first end of the push sleeve 1 is defined as the side of the support 2, and the other side of the support 2 is the side far from the first end of the push sleeve 1. Receive and release subassembly 3 and connect in one side of support piece 2, medical personnel accessible receive and release subassembly 3 drive support piece 2 and contract in first through-hole 4, or stretch out outside the second tip of propelling movement sleeve 1, and make support piece 2 expand to support the basis cranii soft tissue. During the use, support piece 2 is arranged in first through-hole 4, is in the closed condition, and medical personnel push away propelling movement sleeve 1 to skull base specific part from patient's nose to receive and release subassembly 3 through the control and push away support piece 2 outside first through-hole 4, support piece 2 is arranged in the second tip of propelling movement sleeve 1 this moment, and support piece 2 expandes, in order to support the skull base soft tissue. After the tumor resection operation is completed, the supporting member 2 can be accommodated in the first through hole 4 of the pushing sleeve 1 through the retraction assembly 3, and then the supporting member can be withdrawn from the outside of the patient body. The skull base supporting device for the surgical operation is convenient to use, can support human tissues, can provide more abundant operation space for an operating doctor, reduces the damage to normal tissues, further reduces the operation risk, and is favorable for improving the overall level of the neuroendoscopy technology.

It is worth noting that the pushing sleeve 1 and the retracting component 3 are auxiliary devices for placing, pushing and accommodating the supporting piece 2, the pushing sleeve 1 and the retracting component 3 can be made of high-density polyethylene, medical silica gel and other materials, and the pushing sleeve and the retracting component have the advantages of being smooth in surface, clear in identification, simple in structure and the like, and are convenient for identification and operation of an operating doctor. The skull base supporting device for the surgical operation is a sterile medical instrument, can be sterilized by radiation irradiation (1-50 kGy) with a certain dose, and the whole supporting system after irradiation cannot change color and become brittle, so that the appearance is transparent and the strength is unchanged. In addition, the device can be sterilized by ethylene oxide, and the storage box after sterilization does not change color or become brittle, and the appearance is kept transparent and the strength is kept unchanged. The skull base supporting device for the surgical operation is suitable for the neurosurgical operation, in particular to the neuroendoscopic operation for removing intracranial tumors such as pituitary tumor, craniopharyngioma, anterior skull base meningioma, olfactory neuroblastoma and the like.

The retraction assembly 3 comprises a push rod 31 and at least one first pulling line 32, the push rod 31 is installed in the first through hole 4 in a pluggable manner, and the push rod 31 is connected with the inner wall of the first through hole 4 in a sliding manner. The push rod 31 has two opposite end portions, a first end portion of the push rod 31 is an end of the push rod 31 away from the pushing sleeve 1, and a second end portion of the push rod 31 is located in the first through hole 4. The longitudinal section of the push rod 31 is in an I shape, and the first end of the push rod 31 is provided with the round table 8, so that the whole push rod 31 is prevented from being pushed into the first through hole 4 and is not easy to pull out. The push rod 31 is provided with a second through hole 5 along the length direction thereof, and the second through hole 5 penetrates through the whole push rod 31. The second through hole 5 has a first end and a second end, the first end of the second through hole 5 corresponds to the first end of the push rod 31, and the second end of the second through hole 5 corresponds to the direction of the second end of the push rod 31. The supporting member 2 extends out of the second end portion of the second through hole 5, one end of the first pulling wire 32 is fixedly connected to one side of the supporting member 2 close to the first end portion of the first through hole 4, the other end of the first pulling wire 32 passes through the second through hole 5 and is located outside the first end portion of the pushing sleeve 1, that is, the tail end of the other end of the first pulling wire 32 is located outside the first end portion of the second through hole 5. The medical staff pulls the other end of the first pulling wire 32 to drive the support member 2 to contract and close. When the skull base supporting device for surgical operation is inserted into the skull base from the nasal cavity of the patient, the second end of the push rod 31 is located at the first end position of the first through hole 4, and the length of the whole skull base supporting device for surgical operation is longest. When the second end of the pushing sleeve 1 reaches a designated position, the medical staff pushes the push rod 31 into the skull base of the patient, the supporting piece 2 and the push rod 31 slide from the first end of the first through hole 4 to the second end of the first through hole 4 until the supporting piece 2 protrudes out of the second end of the pushing sleeve 1, and at the moment, the supporting piece 2 is not pressed by the side wall of the first through hole 4 any more and can be freely unfolded to play a role in supporting the skull base soft tissues. After operation, medical personnel pull first tractive line 32 toward the external direction of patient, and support piece 2 receives the effect of power and contracts, and simultaneously, medical personnel pull push rod 31 toward the external direction of patient, and support piece 2 is pulled back in first through-hole 4, and it can to take out the basis cranii strutting arrangement that surgery used from the patient internal again. Receive and release subassembly 3's simple structure can realize receiving and releasing and propelling movement pull to support piece 2, easy operation, and the effect is showing. In this embodiment, one end of the first pulling wire 32 is fixedly connected to the center of one side of the supporting member 2. In other embodiments, the number of first puller wires 32 may be two, three, or more. When the number of the first pulling lines 32 is two, the two first pulling lines 32 are symmetrically and respectively arranged at two ends of one side of the supporting member 2. When the number of the first pulling lines 32 is three, each first pulling line 32 is circular around the center of the supporting member 2 and is uniformly distributed on the supporting member 2.

Specifically, the retraction assembly 3 further includes at least two first supporting wires 33, each of the first supporting wires 33 is uniformly distributed on the support member 2, and one end of each of the first supporting wires 33 is fixedly connected to one side of the support member 2. The first supporting wire 33 can be formed by weaving a memory alloy monofilament or a plurality of wires with a certain diameter, and can also be a medical stainless steel wire with better hardness, so that the medical stainless steel wire has stronger mechanical support and is convenient to push and store. The first supporting wire 33 can be placed on the skull base and other hard tissues, and has good stability and is not easy to shift. When the number of the first support lines 33 is two, the two first support lines 33 are symmetrically disposed on the support member 2, respectively. The number of the first supporting wires 33 may be 3 or 5 or more, and in this embodiment, the number of the first supporting wires 33 is 3, and each of the first supporting wires 33 is uniformly distributed on the supporting member 2. Each first support wire 33 is structurally stable, providing a supporting force to the support member 2, maintaining the stability of the entire surgical basis support device.

The retraction assembly 3 further comprises a second traction line 34 located in the second through hole 5, one end of the second traction line 34 is fixedly connected with each first supporting line 33, the other end of the second traction line 34 penetrates through the second through hole 5 from the second end part of the second through hole 5 and extends out of the first end part of the second through hole 5, so that medical personnel can pull the second traction line 34 conveniently, the first supporting line 33 is driven to move, and the opening and closing of the supporting piece 2 are facilitated. When the supporting member 2 is retracted into the pushing sleeve 1, the first pulling line 32 is pulled first to enable the supporting member 2 to be in a closed state, the second pulling line 34 is pulled again to enable the first supporting lines 33 to be gathered together, the supporting member 2 is retracted, the first pulling line 32, the second pulling line 34 and the push rod 31 are pulled together, and the supporting member 2 is accommodated in the first through hole 4 of the pushing sleeve 1. More specifically, the second pulling wire 34 is connected to the first supporting wire 33 through a connecting wire 35, one end of the connecting wire 35 is fixedly connected to the first supporting wire 33, and the other end of the connecting wire 35 is fixedly connected to one end of the second pulling wire 34. One end of the connection line 35 is connected to the middle of the first support line 33. In this embodiment, the number of the connecting lines 35 is three, and the other ends of the three connecting lines 35 are fixedly connected to one end of the second pulling line 34. The connecting line 35 may be a surgical suture. Support piece 2, first supporting wire 33, connecting wire 35 and second lead the connection structure of acting as go-between 34 simple, through pulling second lead 34, drive support piece 2's flexible opening and shutting, the extension is obvious with the shrink effect, and the practicality is strong.

In addition, the retraction assembly 3 further comprises at least one second supporting line 36, one end of the second supporting line 36 is fixedly connected with the other end of any one first supporting line 33, and the other end of the second supporting line 36 is fixedly connected with the other end of another first supporting line 33. In the present embodiment, the second support wire 36 may be a surgical suture, which is three in number. The second supporting lines 36 are all connected to the other end of the first supporting line 33, and the ends of the three second supporting lines 36 are connected to each other, so as to play a role of stably supporting the supporting member 2.

Preferably, the first end of the first through hole 4 is provided with a limiting convex part 6, and the limiting convex part 6 protrudes towards the axial direction of the pushing sleeve 1, so as to limit the moving distance of the second end of the push rod 31, and prevent the second end of the push rod 31 from separating from the first through hole 4 and sliding out of the first end of the pushing sleeve 1. The convex portion may be in the shape of a boss, and the entire first through hole 4 is a stepped hole. Concave part 7 has been seted up to the one end that propelling movement sleeve 1 kept away from spacing convex part 6, and concave part 7 is sunken to spacing convex part 6's direction, provides sufficient extension space for support piece 2. The recess 7 is conical, that is, the recess depth of the recess 7 gradually increases from the outside of the push sleeve 1 toward the axial direction of the push sleeve 1 until the recess is melted into the first through hole 4.

In addition, the material of the supporting member 2 is a shape memory alloy, so that the supporting member 2 has super elasticity and shape memory property. The support member 2 is formed by weaving shape memory alloy monofilaments or engraving by laser, and the alloy monofilaments with proper diameters are selected, so that the support member 2 is guaranteed to have a good mechanical bearing effect and good stability. The shape memory alloy may be a nickel-titanium alloy, a copper-nickel alloy, a copper-aluminum alloy, a copper-zinc alloy, an iron alloy, or the like.

Optionally, in order to better support the soft tissue of the skull base, the shape of the supporting member 2 may be determined according to actual conditions, and the cross section of the supporting member 2 is in a shape of a grid, an ellipse, a circle, a polygon, or the like, which is beneficial for the supporting member 2 to play a stable supporting role.

The utility model discloses a working process does: when the support member 2 is in the closed state, the support member 2 is located in the first through hole 4, and is pressed by the side wall of the first through hole 4 to assume a contracted state. When in operation, the operator pushes the pushing sleeve 1 into the specific part of the skull base through the nasal cavity of the patient. The push rod 31 is pushed towards the direction in the patient body, the support piece 2 is pushed out of the second end part of the first through hole 4, the support piece 2 leaves the push sleeve 1 and is naturally unfolded into a specific shape, and the function of supporting the skull base soft tissue is achieved. The surgeon may place the scaffold at the site of interest with the aid of suitable surgical instruments. After the tumor resection operation is completed, the first traction line 32 and the second traction line 34 are pulled, so that the support piece 2 is contracted, the push rod 31 is pulled in the external direction of the operator, the support piece 2 is accommodated into the first through hole 4, and the skull base supporting device for the whole surgical operation is withdrawn from the outside of the patient through the nose.

To sum up, the embodiment of the utility model provides a basis cranii strutting arrangement that surgery operation was used, wherein, receive and release the subassembly and connect on support piece, but support piece plug ground movable mounting is in the telescopic first through-hole of propelling movement. By operating the retraction assembly, the supporting piece extends out of the pushing sleeve and is unfolded to support the special tissue of the skull base or is retracted into the first through hole of the pushing sleeve, so that the skull base supporting device for the surgical operation can be withdrawn out of the body. This basis cranii strutting arrangement that surgery used constructs simply, and convenient to use does not have any foreign matter to keep somewhere internal at the patient, and the security is high, can effectively improve the quality of scope operation, is comparatively practical auxiliary instrument.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The basis cranii strutting arrangement for surgery, characterized by, includes propelling movement sleeve, support piece and receive and release subassembly, first through-hole has been seted up along its length direction to the propelling movement sleeve, the support piece can install in the first through-hole in the plug-in, receive and release subassembly connection in the support piece is close to one side of the first tip of first through-hole, can drive the support piece switches between expanded state and closed state, when the support piece is located expanded state, the support piece is located outside the second tip of first through-hole, and the support piece expandes, when the support piece is located closed state, the support piece is located in the first through-hole, and the support piece contracts.

2. The apparatus as claimed in claim 1, wherein the retraction assembly comprises a push rod and at least one first pulling wire, the push rod is installed in the first through hole in an insertable manner, the push rod is provided with a second through hole along a length direction thereof, the supporting member extends out of one end of the second through hole, one end of the first pulling wire is fixedly connected to one side of the supporting member close to the first end of the first through hole, and the other end of the first pulling wire penetrates out of the second through hole.

3. The surgical basis cranii support device of claim 2 wherein said retraction assembly further comprises at least two first support wires, each of said first support wires being evenly distributed on said support member, one end of said first support wire being fixedly connected to one side of said support member.

4. The surgical basis cranii support device of claim 3 wherein said retraction assembly further comprises a second pull wire, one end of said second pull wire being fixedly connected to each of said first support wires, and the other end of said second pull wire passing through said second through hole and extending out of said second through hole.

5. A surgical basis for cranium as claimed in claim 4, wherein the second pull wire is connected to the first support wire by a connection wire, one end of the connection wire being fixedly connected to the first support wire and the other end of the connection wire being fixedly connected to one end of the second pull wire.

6. The surgical basis cranii support device of claim 5 wherein the retraction assembly further comprises at least one second support wire, one end of the second support wire being fixedly connected to the other end of any one of the first support wires, the other end of the second support wire being fixedly connected to the other end of another one of the first support wires.

7. A basis cranii support device as claimed in any one of claims 1 to 6, wherein the first end of the first through hole is provided with a limit protrusion which protrudes in the axial direction of the push sleeve.

8. A basis cranii support device as claimed in claim 7, wherein the pushing sleeve is provided with a recess at an end thereof remote from the convex limiting portion, the recess being concave in the direction of the convex limiting portion.

9. A basis cranii support device as claimed in any one of claims 1 to 6 wherein the material of the support is a shape memory alloy.

10. A basis cranii support device as claimed in any one of claims 1 to 6 wherein the cross-sectional shape of the support is a grid or oval or circular or polygonal shape.