CN211066917U - Surgical instrument matched with arthroscope for use - Google Patents

Abstract

The utility model discloses a surgical instrument used in cooperation with an arthroscope, which is provided with a sleeve, a sleeve core rod with a cone tip and an outer sheath cylinder made of plastic material; the sheath cylinder is sleeved between the two ends of the sleeve, the right part of the sheath cylinder is provided with a compression folding area for changing the length of the sheath cylinder, the right end of the sleeve is provided with a boss shoulder for blocking the right end of the sheath cylinder, and the sleeve core rod is positioned in the sleeve and extends the conical tip out of the right end part of the sleeve. The beneficial technical effects are as follows: not only solves the problem that the joint perfusion fluid is externally infiltrated to the tissue gap, but also can firmly fix the sleeve device in the joint cavity, and solves the problem that the sleeve system slides out due to repeated replacement of arthroscopic instruments in the operation. The operation is convenient and simple, the operation time is greatly saved, and the incidence of postoperative complications is effectively reduced.

Description

Surgical instrument matched with arthroscope for use

Technical Field

The utility model belongs to the technical field of medical instrument technique and specifically relates to a surgical instrument who uses with arthroscope cooperation.

Background

In recent years, arthroscopic surgery has become widely popular in the fields of orthopedics and sports medicine. At present, the arthroscope which is commonly used in clinic controls capillary vessel bleeding inside the joint cavity through physiological saline perfusion, so that a satisfactory under-mirror visual field is obtained. Continuous saline perfusion requires that the joint cavity be a relatively closed space, which is often easily achieved in simple single or double pass arthroscopic surgery. However, a plurality of arthroscopic channels are often required to be established in the complicated arthroscopic surgery, and frequent switching is required between an observation channel and an operation channel in the surgery, and at the moment, the extravasation of the physiological saline perfusate becomes a 'speed-limiting link' which restricts the smooth operation.

Theoretically, the extravasation of a saline perfusate can cause several problems: 1. the perfusion pressure in the joint cavity is reduced, the capillary vessel bleeding is increased, and the visual field under the endoscope is fuzzy; 2. the volume of the joint cavity is reduced, and the operation space is reduced; 3. the tissue clearance outside the joint cavity is swollen, and the incidence rate of postoperative periosteum syndrome is increased; 4. the epidermis incision and the joint capsule incision are separated because the perfusate is seeped into the tissue gap, and the smoothness of the arthroscope channel is reduced; 5. a large amount of joint perfusion fluid is leaked to pollute an operating table, so iatrogenic infection is easily caused.

In order to reduce the extravasation of the saline perfusion, the method of using the tourniquet can be clinically used to reduce the capillary hemorrhage, but the method is only suitable for arthroscopic surgery of the far-end limbs such as knee, ankle, elbow and wrist, and the use time of the tourniquet is also strictly limited and usually does not exceed 1.5 hours, otherwise the tourniquet is easy to cause ischemic complications of the limbs after the surgery. In addition, for surgeries such as hip and shoulder, which cannot use tourniquets, a method for controlling blood pressure reduction in general anesthesia surgery is generally used clinically to reduce capillary osmotic pressure, but the method causes the craniocerebral blood pressure of patients to be reduced, so that the operation time is also strictly limited.

In order to solve the problems, a special supporting instrument for arthroscopic surgery, which is convenient to use, simple in structure, safe and practical, needs to be developed, and is one of the tasks which are urgently needed to be completed in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a surgical instrument who uses with arthroscope cooperation is provided, can prevent that the perfusate from oozing to external or tissue clearance in the arthroscope operation, has the patency of guaranteeing the arthroscope passageway, thoroughly eliminates among the arthroscope operation perfusate exosmosis and brings negative effects to the operation characteristics.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a surgical instrument matched with an arthroscope for use comprises a sleeve, a core bar with a conical tip and an outer sheath cylinder made of plastic; the sheath cylinder is sleeved between the two ends of the sleeve, the right part of the sheath cylinder is provided with a compression folding area for changing the length of the sheath cylinder, the right end of the sleeve is provided with a boss shoulder for blocking the right end of the sheath cylinder, and the sleeve core rod is positioned in the sleeve and extends the conical tip out of the right end part of the sleeve.

The compression folding area is a plurality of transverse slits uniformly distributed on the peripheral surface of the right part of the outer sheath cylinder, and the transverse slits are compressed to generate folding deformation through the left-side and right-side thrust of the outer sheath cylinder.

The surgical instrument matched with the arthroscope for use further comprises an adjusting handle and a branch pipe, wherein the adjusting handle is arranged at the left end of the outer sheath cylinder, a curve end face is arranged at the left end of the adjusting handle, the branch pipe is further arranged at the left part of the sleeve pipe, the curve end face is in contact with the outer peripheral face of the branch pipe, and an annular boss butted with the sleeve core rod is further arranged at the left end part of the sleeve pipe.

The surgical instrument matched with the arthroscope for use further comprises a limiting ring, wherein the limiting ring is in a frustum shape made of plastic and provided with a central hole, and the limiting ring is sleeved on the sleeve between the adjusting handle and the compression folding area.

The surgical instrument matched with the arthroscope for use is characterized in that the branch pipe is provided with a valve communicated with the interior of the sleeve, and the valve is provided with a connecting belt connected with the sleeve.

The left end of the sleeve core rod is provided with the clamping end head and the base circular plate for limiting the connection depth of the sleeve, and the triangular empennage is arranged between the clamping end head and the base circular plate.

The utility model provides a surgical instrument used in cooperation with an arthroscope, which is provided with a sleeve, a sleeve core rod with a cone tip and an outer sheath cylinder made of plastic materials; the sheath cylinder is sleeved between the two ends of the sleeve, the right part of the sheath cylinder is provided with a compression folding area for changing the length of the sheath cylinder, the right end of the sleeve is provided with a boss shoulder for blocking the right end of the sheath cylinder, and the sleeve core rod is positioned in the sleeve and extends the conical tip out of the right end part of the sleeve. The beneficial technical effects are as follows: utilize awl point to pierce the joint capsule through the operation edge of a knife and get into the joint intracavity, promote at the sheath section of thick bamboo left end and adjust the handle, make the department compression that transversely cracks produce folding deformation, the skin tissue that is located between compression folding district and the spacing collar is compressed tightly, has not only solved the problem that the joint perfusate extravasates to the tissue clearance, can firmly fix this device in the joint intracavity simultaneously, has solved because of changing the problem that arthroscopic instrument leads to the roll-off of bushing system in the art repeatedly. The operation is convenient and simple, the operation time is greatly saved, and the incidence of postoperative complications is effectively reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the casing of the present invention;

FIG. 3 is a schematic structural view of an outer sheath tube of the present invention;

FIG. 4 is a schematic view of the structure of the spacing collar of the present invention;

FIG. 5 is a schematic view of the structure of the core rod of the present invention;

FIG. 6 is a schematic view of the sheath with a retainer ring mounted thereon;

FIG. 7 is a schematic structural view of the present invention, wherein the adjustment handle is pushed rightwards to compress the transverse slit to generate folding deformation;

FIG. 8 is a schematic view of the state of the present invention entering or exiting the cortical tissue of the patient through the surgical incision;

fig. 9 is the utility model discloses promote the regulation handle right, make the patient cortex tissue compressed tightly by spacing collar and compression folding district's schematic structure.

The parts in the figures are numbered: the three-dimensional empennage device comprises a triangular empennage 1, a clamping end 2, a base circular plate 3, a branch pipe 4, a valve 5, a connecting belt 6, an outer sheath cylinder 7, a compression folding area 8, a boss shoulder 9, a conical tip 10, a transverse slit 11, a folding indentation 12, a limiting ring 13, an adjusting handle 14, a curved end face 15, a sleeve 16, a core sleeving rod 17, patient cortical tissue 18, an operation incision 19 and an annular boss 20.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 9, the working principle of the present invention is described below with reference to the accompanying drawings:

firstly, the initial state: (see figure 1) the core rod 17 is positioned in the sleeve 16, and the I-shaped strip on the circular plate 3 of the base is inosculated with the I-shaped groove arranged in the annular boss 20 to complete seamless connection. The sheath barrel 7 is initially in a closed state and the valve 5 is also in a closed state.

Two, put into the utility model discloses the apparatus: (see fig. 8 and 9) first, a surgical incision 19 is made in the skin of the patient by means of a scalpel, and then the instrument in the initial state is inserted subcutaneously through the surgical incision 19 and the joint capsule is pierced into the joint cavity by means of the awl tip 10. Secondly, under the monitoring of the arthroscope, the position and the depth of the instrument of the utility model are determined. The adjusting handle 14 is pushed rightwards, the compressed folding area 8 in the operation knife edge 19 is in an unfolded state, at the moment, the length of the outer sheath cylinder 7 is shortened, the curved end face 15 of the adjusting handle 14 is kept in contact with the branch pipe 4, and the curved end face 15 is stably propped against. Next, the stop collar 13 is slid rightward along the outer sheath tube 7 until it is confirmed that the stop collar 13 and the compressed folding region 8 in the unfolded state compress the cortical tissue 18 of the patient, preventing the perfusion fluid from extravasating outside the body or into the tissue space during arthroscopic surgery. Finally, the mandrel bar 17 is pulled out of the sleeve 16,

thirdly, operation: (see fig. 7) during the surgical procedure, other arthroscopic instruments may be passed directly into the joint cavity via a one-way open-close piston disposed inside the cannula 16. When the pressure in the joint cavity is overlarge, partial joint perfusate can be released through the valve 5 to adjust the pressure. Meanwhile, the suture and the free body in the joint cavity can be smoothly taken out through the sleeve 16; furthermore, because the utility model discloses the apparatus directly communicates the articular intracavity portion with external, and the joint intracavity can be sent into smoothly to external knot through 16 central authorities of sleeve pipe, has effectively avoided the joint mirror passageway around the soft tissue probably to the incarceration effect that the knot caused, has simplified operation steps greatly, has practiced thrift the operation time.

Fourthly, extract the utility model discloses the apparatus: (see fig. 8) after the operation is finished, the cannula rod 17 is first placed into the cannula 16 again, and the adjusting handle 14 is pulled to the left under arthroscopic monitoring, so that the transverse slit 11 of the sheath cylinder 7 is closed. Meanwhile, the limiting ring 13 is moved leftwards, and the tissue gap between the joint capsule and the skin is loosened, so that the utility model is slowly pulled out of the body. Finally, the skin is sutured, and the operation is completed.

Appropriate changes and modifications to the embodiments described above will become apparent to those skilled in the art from the disclosure and teachings herein. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims (6)

1. A surgical instrument for use with an arthroscope, comprising: comprises a sleeve (16), a core rod (17) with a conical tip (10) and an outer sheath cylinder (7) made of plastic; the sheath cylinder (7) is sleeved between two ends of the sleeve (16), a compression folding area (8) for changing the length of the sheath cylinder (7) is arranged at the right part of the sheath cylinder (7), a convex shoulder (9) for blocking the right end of the sheath cylinder (7) is arranged at the right end of the sleeve (16), and the sleeve core rod (17) is positioned inside the sleeve (16) and stretches the conical tip (10) out of the right end of the sleeve (16).

2. A surgical instrument for use with an arthroscope according to claim 1, wherein: the compression folding area (8) is a plurality of transverse slits (11) uniformly distributed on the right circumferential surface of the outer sheath cylinder (7), and the transverse slits (11) are compressed to generate folding deformation through the rightward thrust on the left side of the outer sheath cylinder (7).

3. A surgical instrument for use with an arthroscope according to claim 2, wherein: still including adjusting handle (14) and bleeder (4), outer sheath section of thick bamboo (7) left end is equipped with adjusts handle (14), it is equipped with curved end face (15) to adjust handle (14) left end, sleeve pipe (16) left part still is equipped with bleeder (4), curved end face (15) and bleeder (4) outer peripheral face contact, still be equipped with annular boss (20) with cover core bar (17) butt joint at sleeve pipe (16) left end portion.

4. A surgical instrument for use with an arthroscope according to claim 3, wherein: the folding type plastic pipe bending machine is characterized by further comprising a limiting ring (13), wherein the limiting ring (13) is of a frustum shape made of plastic and is provided with a central hole, and the limiting ring (13) is sleeved on a sleeve (16) between the adjusting handle (14) and the compression folding area (8).

5. A surgical instrument for use with an arthroscope according to claim 4, wherein: the branch pipe (4) is provided with a valve (5) communicated with the interior of the sleeve (16), and the valve (5) is provided with a connecting belt (6) connected with the sleeve (16).

6. A surgical instrument for use with an arthroscope according to claim 5, wherein: the left end of the sleeve core rod (17) is provided with a clamping end (2) and a base circular plate (3) for limiting the connecting depth of the sleeve (16), and a triangular empennage (1) is arranged between the clamping end (2) and the base circular plate (3).

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