Blood drainage device convenient for endoscopic transnasal saucer area tumor surgery

Abstract

The utility model discloses a blood drainage device convenient for endoscopic transnasal saucer area tumor surgery, which comprises a negative pressure drainage tube, the top end of the negative pressure drainage tube is communicated with a liquid suction hole, the bottom end of the negative pressure drainage tube is communicated with a negative pressure joint, and a negative pressure adjusting component is arranged on the negative pressure joint; the negative pressure adjusting assembly comprises a ventilation piece used for air inflow, and an adjusting piece used for adjusting the air inflow is arranged on the ventilation piece. By shifting the movable plate, the movable plate rotates in the second through pipe, and the rotating angle of the movable plate is adjusted, so that an opening between the second through pipe and the movable plate is gradually increased or decreased, the air inflow of the ventilation piece is adjusted, the negative pressure value is conveniently adjusted, medical staff do not need to shield and press a negative pressure adjusting hole all the time, and the medical staff can conveniently adjust the negative pressure value. By means of the structure, finger limp and numb of medical workers are avoided, labor intensity is relieved, the air inflow of the ventilation piece can be in a stable state all the time, and therefore the blood drainage effect on the sphenoid saddle area is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, especially a blood drainage device in the operation of tumour in the nasal sphenoidal region under endoscope. BACKGROUND

[0002] The blood drainage device is generally made of silicone rubber or polyurethane. In use, one end of the catheter is inserted into a drainage site in the body or wound, and the other end is connected to a drainage connector or other extracorporeal device outside the body, which is drained to the outside of the body by the action of pressure such as intracorporeal pressure, gravity or negative pressure suction.

[0003] When performing a transsphenoidal approach operation, there is a membrane-like tissue, i.e., the diaphragm sellae, in the sella turcica and above the tumor, and especially after the tumor is removed, the diaphragm sellae collapses downward. When the suction device is inserted into the surgical cavity, the membrane-like tissue is easily sucked into the liquid suction hole of the suction device, which not only hinders the removal of waste liquid, but also easily causes the membrane-like tissue to be sucked and broken, which leads to leakage of cerebrospinal fluid and causes serious complications such as intracranial infection.

[0004] The patent document with the publication number CN204092666U discloses an intrasellar suction device for transsphenoidal approach operation, the end of the negative pressure drainage tube is connected with a suction disc, the inner wall of the suction disc is provided with a liquid suction hole, and the outer wall of the suction disc is attached to the diaphragm sellae, so as to avoid the attachment of the diaphragm sellae to the liquid suction hole and prevent the membrane-like tissue from being sucked and broken. The inside of the negative pressure drainage tube has a drainage cavity and a negative pressure adjusting hole, and the negative pressure value is adjusted by adjusting the opening degree of the circular hole on the hand-held part. The suction disc and the negative pressure drainage tube are connected through threads, which is convenient for cleaning after disassembly.

[0005] Although the above-mentioned intrasellar suction device for transsphenoidal approach operation can avoid the attachment of the diaphragm sellae to the liquid suction hole and prevent the membrane-like tissue from being sucked and broken, when in use, the thumb needs to block and press the negative pressure adjusting hole to adjust the negative pressure value. The thumb is in a state of blocking and pressing the negative pressure adjusting hole all the time, and long-time pressing not only causes the thumb of the medical staff to be sore and numb, but also reduces the pressing force of the negative pressure adjusting hole due to the soreness and numbness of the thumb, which increases the air intake and reduces the adjustment effect of the negative pressure value.

[0006] Therefore, a blood drainage device in the operation of tumour in the nasal sphenoidal region under endoscope is provided. UTILITY MODEL CONTENT

[0007] The utility model aims at providing a blood drainage device in the operation of tumour in the nasal sphenoidal region under endoscope, which is used to solve the problems in the above background.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following main technical scheme:

[0009] The utility model provides a blood drainage device for facilitating endoscopic transnasal sellar region tumor operation, including negative pressure drainage pipe, a plurality of regular distribution liquid suction holes are arranged in the top end of negative pressure drainage pipe, the bottom of negative pressure drainage pipe is connected with negative pressure connector, and the negative pressure connector is equipped with negative pressure adjusting assembly.

[0010] The negative pressure adjusting assembly comprises a venting member for air intake, and the venting member is provided with an adjusting member for adjusting the air intake amount.

[0011] The venting member comprises a first through pipe in communication with the negative pressure connector, and a second through pipe in communication with one end of the first through pipe away from the negative pressure connector.

[0012] The adjusting member comprises a fixed plate fixedly connected to the inner cavity of the second through pipe, an opening for venting is formed between the fixed plate and the second through pipe, and the surface of the fixed plate is rotatably connected with a movable plate capable of shielding the opening.

[0013] As a preferred technical solution, the fixed plate and the movable plate are both semicircular in structure, and the central axes of the fixed plate, the movable plate and the second through pipe are all on the same straight line.

[0014] As a preferred technical solution, the inner wall surface of the second through pipe is fixedly connected with a circular ring, the surface of the movable plate is provided with a sliding groove, and the inner wall surface of the sliding groove is slidingly connected with the surface of the circular ring.

[0015] As a preferred technical solution, the circular ring is a rubber ring.

[0016] As a preferred technical solution, the surface of the movable plate is fixedly connected with a lever, the surface of the second through pipe is provided with a through groove matched with the lever, one end of the lever away from the movable plate penetrates to the outside of the second through pipe through the through groove, and the inner wall surface of the through groove is slidingly connected with the surface of the lever.

[0017] As a preferred technical solution, one side of the movable plate is fixedly connected with a protrusion, one side of the inner wall surface of the through groove is fixedly connected with a plurality of arc-shaped equidistantly distributed clamping grooves, and the protrusion is clamped into the inner cavity of the corresponding clamping groove.

[0018] As a preferred technical solution, the surface of the negative pressure connector is fixedly sleeved with a handle, and the surface of the handle is provided with anti-skid lines.

[0019] The application can gradually increase or decrease the opening between the second through pipe and the movable plate by rotating the movable plate in the second through pipe and adjusting the rotation angle of the movable plate, thereby adjusting the air intake of the ventilation member, adjusting the negative pressure value, avoiding the medical staff from pressing the negative pressure adjusting hole all the time, avoiding the fingers of the medical staff from being numb, reducing the labor intensity, and keeping the air intake of the ventilation member in a stable state, thereby ensuring the blood drainage effect on the sella turcica area. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic view of the adjusting part of the blood drainage device in the endoscopic transnasal sella turcica tumor operation in a closed state of the utility model;

[0021] Figure 2 It is a partial structure schematic view of the blood drainage device in the endoscopic transnasal sella turcica tumor operation in the utility model;

[0022] Figure 3 It is an exploded view of the partial structure of the blood drainage device in the endoscopic transnasal sella turcica tumor operation in the utility model;

[0023] Figure 4 It is a structure schematic view of the circular ring and the clamping groove of the blood drainage device in the endoscopic transnasal sella turcica tumor operation in the utility model;

[0024] Figure 5 It is a structure schematic view of the movable plate, the push rod and the protrusion of the blood drainage device in the endoscopic transnasal sella turcica tumor operation in the utility model;

[0025] Figure 6 It is a structure schematic view of the adjusting part of the blood drainage device in the endoscopic transnasal sella turcica tumor operation in an open state of the utility model.

[0026] In the figure: 100, negative pressure drainage pipe; 200, liquid suction hole; 300, negative pressure connector; 400, negative pressure adjusting assembly; 410, ventilation member; 411, first through pipe; 412, second through pipe; 4121, circular ring; 4122, through slot; 4123, clamping groove; 420, adjusting part; 421, fixed plate; 422, movable plate; 4221, sliding slot; 4222, push rod; 4223, protrusion; 500, handle. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0028] Please refer to Figures 1-6 The embodiment of the present application provides a blood drainage device convenient for use in endoscopic transnasal sphenoid sinus region tumor operation, which comprises a negative pressure drainage tube 100, liquid suction holes 200, a negative pressure connector 300 and a negative pressure adjusting assembly 400. The liquid suction holes 200 are regularly arranged at the top end of the negative pressure drainage tube 100. The negative pressure connector 300 is connected to the bottom end of the negative pressure drainage tube 100. The negative pressure adjusting assembly 400 is arranged on the negative pressure connector 300. The negative pressure adjusting assembly 400 comprises a ventilation member 410 for air intake. The ventilation member 410 is provided with an adjusting member 420 for adjusting the air intake amount.

[0029] The ventilation member 410 comprises a first through pipe 411 connected to the negative pressure connector 300. The first through pipe 411 is connected with a second through pipe 412 at the end away from the negative pressure connector 300.

[0030] The adjusting member 420 comprises a fixed plate 421 fixedly connected to the inner cavity of the second through pipe 412. An opening for ventilation is formed between the fixed plate 421 and the second through pipe 412. The surface of the fixed plate 421 is rotationally connected with a movable plate 422 capable of shielding the opening through a rotating shaft.

[0031] It should be noted that the working principle of the negative pressure drainage tube 100 is consistent with that of the negative pressure drainage tube in the intrasellar aspirator for sphenoid sinus approach operation disclosed in the existing publication No. CN204092666U. It is prior art, and therefore will not be described in detail in the present technical solution.

[0032] The fixed plate 421 and the movable plate 422 are both semicircular in structure, and the fixed plate 421, the movable plate 422, the rotating shaft and the central axis of the second through pipe 412 are all on the same straight line. When the fixed plate 421 is rotated and completely coincides with the movable plate 422, the opening is completely exposed. When the fixed plate 421 is rotated and opposite to the movable plate 422, the opening is completely shielded.

[0033] The inner wall surface of the second through pipe 412 is fixedly connected with a circular ring 4121, the surface of the movable plate 422 is provided with a sliding groove 4221, the inner wall surface of the sliding groove 4221 is in sliding connection with the surface of the circular ring 4121, when the movable plate 422 rotates, the sliding groove 4221 can be driven to rotate synchronously, so that the movable plate 422 can stably rotate in the inner cavity of the second through pipe 412 and the surface of the circular ring 4121, and the phenomenon of shaking or deviation is avoided.

[0034] The circular ring 4121 is a rubber circular ring, which can improve the stability of the rotation of the movable plate 422 and the sealing property between the second through pipe 412 and the movable plate 422.

[0035] The surface of the movable plate 422 is fixedly connected with a push rod 4222, the surface of the second through pipe 412 is provided with a through groove 4122 matched with the push rod 4222, one end of the push rod 4222 away from the movable plate 422 penetrates to the outside of the second through pipe 412 through the through groove 4122, the inner wall surface of the through groove 4122 is in sliding connection with the surface of the push rod 4222, and through the cooperation of the push rod 4222 and the through groove 4122, the movable plate 422 can be conveniently pushed by medical staff.

[0036] The side of the movable plate 422 is fixedly connected with a protrusion 4223, the inner wall surface of the through groove 4122 is fixedly connected with a plurality of arc-shaped equidistantly distributed clamping grooves 4123, the protrusion 4223 is clamped into the inner cavity of the corresponding clamping groove 4123, when the protrusion 4223 is rotated to a certain angle along with the push rod 4222, the protrusion 4223 can be clamped into the inner cavity of the corresponding clamping groove 4123, so that the push rod 4222 and the movable plate 422 can be stably kept in this state, and at this time, the push rod 4222 does not need to be supported or pressed by fingers.

[0037] The surface of the negative pressure connector 300 is fixedly sleeved with a handle 500, the surface of the handle 500 is provided with anti-skid lines, and the handle 500 facilitates medical staff to hold the negative pressure connector 300 by hand.

[0038] The working principle of the utility model is: through stirring the stir rod 4222 with force, the stir rod 4222 drives the movable plate 422, the sliding slot 4221 and the convex 4223 to rotate synchronously, the fixed plate 421 rotates in the inner cavity of the second through pipe 412 with the pivot as the axis, the stir rod 4222 slides in the inner cavity of the through slot 4122, the ring 4121 slides in the inner cavity of the sliding slot 4221, the opening between the first through pipe 411 and the movable plate 422 gradually increases or decreases, and then the air intake of the ventilation component 410 is adjusted, and the negative pressure value is adjusted; when the stir rod 4222 rotates to a certain angle, the convex 4223 is clamped to the inner cavity of the corresponding clamping groove 4123, and then the stir rod 4222 and the movable plate 422 can be stably kept at the position, so that the air intake of the ventilation component 410 is always in a stable state.

[0039] The parts not involved in the utility model are the same as the prior art or can be realized by using the prior art. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A blood drainage device for endoscopic transnasal surgery of tumors in the sellar region, characterized in that, It includes a negative pressure drainage tube (100), which has multiple regularly distributed suction holes (200) at its top end. The bottom end of the negative pressure drainage tube (100) is connected to a negative pressure connector (300), and the negative pressure connector (300) is provided with a negative pressure adjustment component (400). The negative pressure regulating component (400) includes a vent (410) for air intake, and the vent (410) is provided with an adjusting component (420) for adjusting the air intake volume. The ventilation component (410) includes a first conduit (411) connected to the negative pressure connector (300), and a second conduit (412) is connected to the end of the first conduit (411) away from the negative pressure connector (300). The adjusting member (420) includes a fixing plate (421) fixedly connected to the inner cavity of the second pipe (412), and an opening for ventilation is formed between the fixing plate (421) and the second pipe (412). A movable plate (422) capable of blocking the opening is rotatably connected to the surface of the fixing plate (421).

2. The blood drainage device for endoscopic transnasal surgery of sellar region tumors according to claim 1, characterized in that: The fixed plate (421) and the movable plate (422) are both semi-circular structures, and the central axes of the fixed plate (421), the movable plate (422) and the second through pipe (412) are all on the same straight line.

3. The blood drainage device for endoscopic transnasal surgery of sellar region tumors according to claim 1, characterized in that: The inner wall of the second conduit (412) is fixedly connected to a ring (4121), and the surface of the movable plate (422) is provided with a groove (4221), the inner wall of the groove (4221) is slidably connected to the surface of the ring (4121).

4. The blood drainage device for endoscopic transnasal surgery of sellar region tumors according to claim 3, characterized in that: The ring (4121) is a rubber ring.

5. The blood drainage device for endoscopic transnasal surgery of sellar region tumors according to claim 1, characterized in that: A lever (4222) is fixedly connected to the surface of the movable plate (422). The surface of the second through pipe (412) is provided with a through groove (4122) that is adapted to the lever (4222). One end of the lever (4222) away from the movable plate (422) passes through the through groove (4122) to the outside of the second through pipe (4122). The inner wall of the through groove (4122) is slidably connected to the surface of the lever (4222).

6. The blood drainage device for endoscopic transnasal surgery of sellar region tumors according to claim 5, characterized in that: A protrusion (4223) is fixedly connected to one side of the movable plate (422), and a number of arc-shaped equidistant slots (4123) are fixedly connected to one side of the inner wall of the through groove (4122). The protrusion (4223) is engaged with the inner cavity of the corresponding slot (4123).

7. The blood drainage device for endoscopic transnasal surgery of sellar region tumors according to any one of claims 1-6, characterized in that: A handle (500) is fixedly sleeved on the surface of the negative pressure connector (300), and the surface of the handle (500) is provided with anti-slip texture.

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