CN217244847U

CN217244847U - Patient interface unit of interventional medical instrument

Info

Publication number: CN217244847U
Application number: CN202221073500.4U
Authority: CN
Inventors: 张恒雪; 赵士勇
Original assignee: Tianjin Hengyu Medical Technology Co ltd
Current assignee: Tianjin Hengyu Medical Technology Co ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-08-23
Anticipated expiration: 2032-04-27

Abstract

The utility model discloses a patient interface unit of an interventional medical instrument, which comprises a closed shell, wherein an inserting hole for inserting a catheter is arranged on the shell, a catheter fixing unit is arranged in the shell and at a position close to the inserting hole, the catheter comprises an outer tube and a rotary inner core positioned at the inner side of the outer tube, the end part of the outer tube is provided with a handle part, the handle part can be inserted into the inserting hole, and the catheter fixing unit can fix the handle part; a rotation and retraction control unit is further provided in the housing, and the rotation and retraction control unit is provided on the slide rail so as to be able to approach or depart from the catheter fixing unit. The utility model discloses an intervention formula medical instrument's patient interface unit, simple structure, convenient operation can realize the quick grafting of pipe, and main part all sets up in the confined casing, makes have the fungus to cut apart with aseptic environment more easily.

Description

Patient interface unit of interventional medical instrument

Technical Field

The utility model relates to an intervention type medical instrument's patient interface unit belongs to medical instrument technical field.

Background

Interventional medical devices refer to devices for whole or partial intervention into the body through the body surface, contacting tissues in the body, the blood circulation system, the central nervous system, etc. by means of surgery, including devices used in interventional surgery, single use sterile surgical devices, and devices that remain in the body temporarily or for a short time, such as IVUS (intravascular ultrasound) devices or OCT (optical coherence tomography) devices, etc. The technical scheme of the catheter connection position is as shown in fig. 1, basically, an outer tube 2 of a catheter is fixed on a catheter support part 6 of the patient interface unit, a rotary inner core 1 of the catheter is fixed on a rotary and withdrawing control unit 7 of the patient interface unit, then rotary control movement of the catheter is realized through the rotary and withdrawing control unit 7, and similarly, the rotary and withdrawing control unit 7 is used for realizing linear movement control on a sliding plate 5, so that the main control function of the patient interface unit is realized. In this structure, the pipe produces with pipe support portion 6 and rotation and withdrawal the control unit 7 respectively and is connected, need two steps of operations to realize the connection of pipe among the actual operation, simultaneously because patient interface unit belongs to the contaminated part, the pipe belongs to aseptic part, the contaminated risk of pipe has just been increased in the in-service use, in order to solve this problem, the usual mode is to do slide 5 into the disposable aseptic consumptive material the same with the pipe, avoid cross contamination's problem, still there are following several defects: 1. the outer tube 2 and the catheter supporting part 6 need to be connected each time the catheter is connected, so that the connection is loosened, reconnection is caused, and the operation time is increased; 2. when the sterile sheath is used on an operation sickbed, the sterile sheath is required to be matched for use, because the catheter is connected with the catheter support part 6 and the rotating and withdrawing control unit 7, and the rotating and withdrawing control unit 7 also needs to do linear motion relative to the sliding plate support part 6, when the sliding plate is positioned in the sterile sheath, the hand of an operator is likely to be in contact with the sterile part of the patient interface unit when the catheter is connected, and the sterile sheath is difficult to operate due to the structure; 3. the sliding plate 5 is used as a disposable sterile consumable, which increases the operation cost of the patient.

SUMMERY OF THE UTILITY MODEL

It is therefore an object of the present invention to provide a patient interface unit for an interventional medical device that enables automatic connection of a catheter.

In order to achieve the above object, the present invention provides a patient interface unit of an interventional medical device, comprising a closed housing, wherein an insertion hole for inserting a catheter is formed in the housing, a catheter fixing unit is disposed in the housing and at a position close to the insertion hole, the catheter comprises an outer tube and a rotating core located inside the outer tube, a handle portion is disposed at an end of the outer tube, the handle portion can be inserted into the insertion hole, and the catheter fixing unit can fix the handle portion; a rotation and retraction control unit is further arranged in the shell and is arranged on the sliding rail so as to be close to or far away from the catheter fixing unit; the rotation and retraction control unit is provided with a conduit core interface, and the conduit core interface and the rotation core can be mutually inserted and fixed after the rotation and retraction control unit is close to the conduit fixing unit; the rotation and retraction control unit includes a rotation drive motor, and the catheter core interface is connected to the rotation drive motor.

The power output end of the rotary driving motor is provided with a driving wheel, a driven wheel is arranged on the catheter core interface, and the driving wheel is connected with the driven wheel through a transmission belt.

A position detection device is also provided within the housing for detecting the position of the rotation and retraction control unit.

The rotary and withdrawing control unit is provided with a nut, the nut is sleeved on a screw rod, the screw rod is connected to a withdrawing driving motor, and the withdrawing driving motor can drive the screw rod to rotate so as to drive the rotary and withdrawing control unit to move linearly through the nut.

The catheter fixing unit comprises a catheter clamp which can clamp and fix the handle part.

The rotary inner core comprises a line part and a plug connected to one end of the line part, an accommodating cavity used for accommodating the plug is arranged in the handle part, and the outer diameter of the plug is larger than that of the line part, so that the plug is limited in the accommodating cavity.

The end part of the plug is provided with a jack, an inserted bar is arranged in the jack, and a gap is formed between the inserted bar and the inner side wall of the jack; the catheter inner core interface comprises an insertion cylinder which can be inserted into the gap, and the catheter inner core interface is in interference fit with the plug.

Be provided with the installation frame in the casing, the slide rail set up in on the installation frame.

Adopt above-mentioned technical scheme, the utility model discloses an intervention formula medical instrument's patient interface unit inserts the handle portion of pipe back in the spliced eye on the casing during use, and is fixed with handle portion through the fixed unit of pipe, and rotatory and withdrawal the control unit is close to under the drive of rotary drive motor the fixed unit of pipe and the rotatory kernel tip that makes the pipe and rotatory and withdrawal the pipe kernel interface on the control unit and peg graft fixedly, then can drive rotatory kernel through rotatory and withdrawal the control unit and rotate or withdraw. The utility model discloses an intervention formula medical instrument's patient interface unit, simple structure, convenient operation can realize the quick grafting of pipe, and the main part all sets up in the confined casing, makes have the fungus and the aseptic environment is cut apart more easily.

Drawings

Fig. 1 is a schematic diagram of a prior art patient interface unit.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a perspective view of a patient interface unit of the interventional medical device with the housing removed.

Fig. 4 is a schematic perspective view of fig. 3 at another angle.

Fig. 5 is a side view of fig. 3.

Fig. 6 is an exploded view of the present invention.

Fig. 7 is another angle view of fig. 6.

Figure 8 is a partial cross-sectional view of a catheter.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 2 to 8, the present embodiment provides a patient interface unit of an interventional medical device, comprising a closed housing 101, a mounting frame 102 is arranged in the housing 101, a slide rail 103 is arranged on the mounting frame 102, and a rotation and retraction control unit 7 is mounted on the slide rail 103 through a slide block 104. The rotating and withdrawing control unit 7 is provided with a nut 105, the nut 105 is sleeved on a screw rod 106, the screw rod 106 is connected to a withdrawing driving motor 107, and the withdrawing driving motor 107 can drive the screw rod 106 to rotate so as to drive the rotating and withdrawing control unit 7 to linearly move through the nut 105. A socket 108 for inserting the catheter 100 is provided on the housing 101, and a catheter fixing unit is provided on the mounting frame 102 at a position close to the socket 108.

The catheter 100 comprises an outer tube 2 and a rotary inner core 1 positioned inside the outer tube 2, wherein the rotary inner core 1 comprises a wire part 11 and a plug 12 connected to one end of the wire part 11, a handle part 21 is arranged at the end part of the outer tube 2, an accommodating cavity for accommodating the plug 12 is arranged in the handle part 21, and the outer diameter of the plug 12 is larger than that of the wire part 11 so that the plug 12 is limited in the accommodating cavity.

The handle portion 21 can be inserted into the insertion hole 108, and the catheter fixing unit can fix the handle portion 21. In this embodiment, the catheter fixing unit comprises a catheter clamp 109, and the catheter clamp 109 can clamp and fix the handle portion 21. Of course, in other embodiments, the catheter fixing unit may also be a plug bush, and the handle portion 21 can be fixed in an interference fit with the plug bush after being inserted into the plug bush.

The rotation and retraction control unit 7 is provided with a conduit core interface 110, and when the rotation and retraction control unit 7 is driven by the retraction driving motor 107 to approach the conduit fixing unit, the conduit core interface 110 and the rotation core 1 can be mutually inserted and fixed. In this embodiment, the rotation and retraction control unit 7 is provided with a rotation driving motor 112, a power output end of the rotation driving motor 112 is provided with a driving wheel 113, the catheter core interface 110 is provided with a driven wheel, and the driving wheel 113 is connected to the driven wheel through a transmission belt 115.

An insertion hole 121 is formed in the end portion of the plug 12, an insertion rod 122 is arranged in the insertion hole 121, and a gap is formed between the insertion rod 122 and the inner side wall of the insertion hole 121; the catheter core interface 110 includes a plug barrel 110a that can be inserted into the gap, and the catheter core interface 110 is interference fit with the plug 12.

A position detection device 114 is also provided in the housing 101 for detecting the position of the rotation and retraction control unit 7.

Adopt above-mentioned technical scheme, the utility model discloses an intervention formula medical instrument's patient interface unit inserts the handle portion 21 of pipe back in the spliced eye 108 on casing 101 during the use, and is fixed handle portion 21 through the fixed unit of pipe, and rotatory and withdrawal the control unit 7 is close to under the drive of rotary drive motor 112 the fixed unit of pipe and the rotatory kernel 1 tip that makes the pipe and rotatory and withdrawal the pipe kernel interface 110 grafting on the control unit 7 fixed, then can drive rotatory kernel 1 through rotatory and withdrawal the control unit 7 and rotate or withdraw. The utility model discloses an intervention formula medical instrument's patient interface unit, simple structure, convenient operation can realize the quick grafting of pipe, and main part all sets up in confined casing 101, realizes the single-point connection during the grafting pipe, makes aseptic and sterile environment cut apart more easily. The linear motion and the rotary motion are redesigned, the linear motion is changed into the linear motion driven by a motor screw rod driving component, and meanwhile, a position detection device 114 is arranged for judging the motion position, so that the moving range of the rotary and withdrawing control unit 7 can be conveniently controlled, and the conduit connection can be realized.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A patient interface unit for an interventional medical device, characterized by: the catheter fixing device comprises a closed shell, wherein an insertion hole for inserting a catheter is formed in the shell, a catheter fixing unit is arranged in the shell and in a position close to the insertion hole, the catheter comprises an outer tube and a rotary inner core positioned on the inner side of the outer tube, a handle part is arranged at the end part of the outer tube and can be inserted into the insertion hole, and the catheter fixing unit can fix the handle part; a rotation and retraction control unit is further provided in the housing, and the rotation and retraction control unit is provided on the slide rail so as to be able to approach or depart from the catheter fixing unit; the rotation and retraction control unit is provided with a conduit core interface, and the conduit core interface and the rotation core can be mutually inserted and fixed after the rotation and retraction control unit is close to the conduit fixing unit; the rotation and retraction control unit includes a rotation drive motor, and the catheter core interface is connected to the rotation drive motor.

2. The patient interface unit of an interventional medical device of claim 1, wherein: the power output end of the rotary driving motor is provided with a driving wheel, a driven wheel is arranged on the catheter core interface, and the driving wheel is connected with the driven wheel through a transmission belt.

3. The patient interface unit of an interventional medical device of claim 1, wherein: a position detection device is also provided in the housing for detecting the position of the rotation and retraction control unit.

4. The patient interface unit of an interventional medical device of claim 1, wherein: the rotary and withdrawing control unit is provided with a nut, the nut is sleeved on a screw rod, the screw rod is connected to a withdrawing driving motor, and the withdrawing driving motor can drive the screw rod to rotate so as to drive the rotary and withdrawing control unit to move linearly through the nut.

5. The patient interface unit of an interventional medical device of claim 1, wherein: the catheter fixing unit comprises a catheter clamp which can clamp and fix the handle part.

6. The patient interface unit of the interventional medical device of any one of claims 1-5, wherein: the rotary inner core comprises a line part and a plug connected to one end of the line part, an accommodating cavity used for accommodating the plug is arranged in the handle part, and the outer diameter of the plug is larger than that of the line part, so that the plug is limited in the accommodating cavity.

7. The patient interface unit of an interventional medical device of claim 6, wherein: the end part of the plug is provided with a jack, an insert rod is arranged in the jack, and a gap is formed between the insert rod and the inner side wall of the jack; the catheter inner core interface comprises an insertion cylinder which can be inserted into the gap, and the catheter inner core interface is in interference fit with the plug.

8. The patient interface unit of the interventional medical device of any one of claims 1-5, wherein: be provided with the installation frame in the casing, the slide rail set up in on the installation frame.