CN110368058B - A kind of medical saw disc mechanism and using method thereof - Google Patents

Abstract

Translated fromChinese

本发明公开了一种医用锯盘机构，包括拆卸单元和回收单元；所述拆卸单元包括套筒、锯盘和前部外壳；所述套筒的其中一端与回收单元对应连接；所述锯盘设置在套筒远离回收单元的一端上；所述回收单元包括电机；所述电机的动力输出端与锯盘的转轴配合连接；所述前部外壳包括罩体和杆件；所述罩体与筒体连接，包覆设置在锯盘外侧；所述杆件一端与罩体连接，另一端向远离回收单元的方向延伸；该锯盘机构结构紧凑、控制简单，且机构传动稳定，一次性耗材造价低、供电及动力输出部分可重复使用，有效节约手术成本。

The invention discloses a medical saw disk mechanism, comprising a disassembly unit and a recovery unit; the disassembly unit includes a sleeve, a saw disk and a front housing; one end of the sleeve is correspondingly connected with the recovery unit; the saw disk It is arranged on the end of the sleeve away from the recovery unit; the recovery unit includes a motor; the power output end of the motor is connected with the rotating shaft of the saw disc; the front housing includes a cover body and a rod; The barrel is connected, and it is covered and arranged on the outside of the saw disc; one end of the rod is connected to the cover body, and the other end extends away from the recovery unit; the saw disc mechanism has a compact structure, simple control, stable mechanism transmission, and disposable consumables. The cost is low, and the power supply and power output parts can be reused, which effectively saves the cost of surgery.

Description

Medical saw disc mechanism and using method thereof

Technical Field

The invention relates to the field of medical equipment, in particular to a medical saw disc mechanism.

Background

In the organ resection operation, the operation is often performed by using an electric knife, an ultrasonic knife, a P-knife, and the like, and these instruments are expensive to purchase and maintain, and may accidentally injure surrounding tissues during the use.

Taking the hysterectomy as an example, the method is divided into the following four operation formulas according to the number of the operation steps completed by a laparoscope: class a (complete resection of cervical tissue): comprises two types of laparoscope total hysterectomy (TLH) and laparoscope assisted scrotal hysterectomy (LAVH); class B (total or partial preservation of cervical tissue): comprises two types of Laparoscopic Subtotal Hysterectomy (LSH) and laparoscopic intrafascial hysterectomy (CICH).

When taking out uterus, the multi-purpose cylinder type rotary cutter crushes the uterus tissue into strips to be taken out, when the rotary cutter is not available, the fornix is cut open to be taken out, or a small incision is made on the abdominal wall to be taken out. In contrast, the latter two methods are easy to damage ureter, bladder and rectum during operation, and have large wounds, so that the methods are not suitable for use. The cylindrical rotary cutter can keep the physiological anatomy of the vagina complete and achieve the purpose of cutting the whole uterus, but the taking out and the cleaning after the uterus tissue is crushed are not very convenient.

Therefore, it is necessary to invent a medical saw disc mechanism which is simple to operate and control, safe and stable to work and cost-saving.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the medical saw disc mechanism which is simple to control, safe and stable to work and capable of saving cost.

The technical scheme is as follows: in order to achieve the purpose, the medical saw disc mechanism comprises a disassembling unit and a recovering unit; the disassembling unit comprises a sleeve, a saw disc and a front shell; one end of the sleeve is correspondingly connected with the recovery unit; the saw disc is arranged at one end of the sleeve, which is far away from the recovery unit; the recovery unit comprises a motor; the power output end of the motor is matched and connected with the rotating shaft of the saw disc; the front housing comprises a cover and a rod; the cover body is connected with the cylinder body and is arranged outside the saw disc in a covering mode; one end of the rod piece is connected with the cover body, and the other end of the rod piece extends towards the direction far away from the recovery unit.

Further, the recovery unit further comprises a rear housing, a coupling and a long shaft; the motor, the coupler and the long shaft are arranged in the rear shell; the long shaft is connected with the power output end of the motor through a coupler; one end of the long shaft, which is far away from the motor, extends into the sleeve; the detaching unit includes a bevel gear set; the corresponding end of the long shaft is in transmission fit with the conical gear set; the bevel gear set is in transmission fit with the saw disc.

Further, the bevel gear set comprises a first bevel gear, a second bevel gear and a gear shaft; the gear shaft is in nested fit with the rotation center of the saw disc and synchronously rotates; the second bevel gear is sleeved on the gear shaft; the first bevel gear and the second bevel gear are meshed with each other; the corresponding end of the long shaft is connected with the rotating center of the first bevel gear.

Furthermore, a positioning groove is formed in the end face, facing the long shaft, of the first conical gear; the long shaft is correspondingly embedded in the positioning groove.

Furthermore, a deep groove ball bearing is arranged on one side, close to the rear shell, inside the sleeve; and one side of the deep groove ball bearing, which is far away from the saw disc, is provided with a shaft end check ring and a felt ring.

Further, the detaching unit further comprises a baffle plate; the baffle is connected with the other side of the cylinder body opposite to the rod piece; the baffle is an arc-shaped plate structure folded inwards.

Further, the use method of the medical saw disc mechanism comprises the following steps:

step one, the mechanism is stretched into a human body, a rod part of a front shell is inserted into a target organ, and a baffle is attached to the outer wall of the target organ;

under the auxiliary guidance of the laparoscope, a motor is started to drive a saw disc to rotate, organ tissues between the saw disc and a baffle are cut, and the baffle protects tissues except the target organ from being cut by mistake in the process; the cover body plays a role in opening the opening of the organ and opening up a space for the work of the saw disc;

step three, after one side of the organ is cut, taking the rod piece as a rotation center, adjusting the organ area corresponding to the saw disc, cutting the organ tissue in the same way, and finally dividing the target organ into a plurality of valve forms;

step four, shutting down the saw disc mechanism, withdrawing and placing the saw disc mechanism on the tool disc, clamping one end of the incised target organ by using instruments such as a nipper and the like, and respectively extracting the incised target organ out of the body;

and step five, after the operation is finished, separating the disassembling unit part of the saw disc mechanism, discarding the disassembling unit part into a waste box, and disinfecting the recycling unit part for the next use.

Has the advantages that: the invention relates to a medical saw disc mechanism, which comprises a disassembling unit and a recovering unit; the disassembling unit comprises a sleeve, a saw disc and a front shell; one end of the sleeve is correspondingly connected with the recovery unit; the saw disc is arranged at one end of the sleeve, which is far away from the recovery unit; the recovery unit comprises a motor; the power output end of the motor is matched and connected with the rotating shaft of the saw disc; the front housing comprises a cover and a rod; the cover body is connected with the cylinder body and is arranged outside the saw disc in a covering mode; one end of the rod piece is connected with the cover body, and the other end of the rod piece extends towards the direction far away from the recovery unit; the saw disc mechanism is compact in structure, simple to control, stable in mechanism transmission, low in manufacturing cost of disposable consumables, reusable in power supply and power output parts and capable of effectively saving operation cost.

Drawings

FIG. 1 is a front view of a saw disc mechanism;

FIG. 2 is a top view of the saw disc mechanism;

FIG. 3 is a side view of the saw disc mechanism;

FIG. 4 is a schematic structural view of a detaching unit;

FIG. 5 is a schematic view of a support frame;

FIG. 6 is a schematic view of the rear housing construction;

FIG. 7 is a schematic illustration of a hysterectomy procedure using the mechanism.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

A medical saw disc mechanism is shown in figures 1 and 3 and comprises a disassembling unit and a recovering unit which are connected through threads and can be assembled and disassembled quickly; the dismounting unit comprises asleeve 10, asaw disc 2 and afront housing 14; one end of thesleeve 10 is correspondingly connected with the recovery unit; thesaw disc 2 is arranged at one end of thesleeve 10 far away from the recovery unit; the recovery unit comprises a motor 18, and the motor 18 is powered by a battery 19; the power output end of the motor 18 is matched and connected with the rotating shaft of thesaw disc 2; thefront shell 14 is obtained by injection molding, and plays a role in positioning and supporting other structures; as shown in fig. 4, thefront housing 14 is a combined structure, and specifically includes acover 141 and arod 142; thecover body 141 is connected with thecylinder body 10, is arranged outside thesaw disc 2 in a wrapping mode, and is used for installing and positioning the bevel gear set, so that the reliable transmission of the rotary motion is guaranteed without being interfered by external objects; one end of therod 142 is connected to thecover 141, and the other end extends in a direction away from the recovery unit, so as to penetrate through the uterine fundus during the operation to realize the positioning.

The recovery unit further comprises arear housing 16, a coupling 17 and along shaft 15; as shown in fig. 5, a supportingframe 20 is further disposed in therear housing 16, and a caulking groove is disposed on the surface of the supportingframe 20, and can be used to fix the positions of the battery 19 and the motor 18, and a wire hole connected to the corresponding circuit board 22 is reserved; the circuit board 22 is a component that can be purchased directly from the market, and is not described herein; therear housing 16 serves as a hand-gripping portion; therear shell 16 is sleeved with an isolation rubber sleeve during working, so that the power supply part in the protection period is not polluted and can be reused; the rubber sleeve is a disposable sterile article, has larger elasticity, and can be firmly attached to the surface of therear shell 16 to ensure the sealing property; as shown in fig. 6, therear cover 23 is disposed at the rear of therear housing 16 in a sealing fit manner, so as to facilitate the assembly of the internal components; the surface of therear shell 16 is also embedded with a press type switch 21, and the switch 21 is in control connection with the motor 18; the motor 18, the coupling 17 and thelong shaft 15 are arranged in therear shell 16; thelong shaft 15 is connected with the power output end of a motor 18 through a coupler 17; the end of thelong shaft 15 far away from the motor 18 extends into thesleeve 10; the detaching unit includes a bevel gear set; the corresponding end of thelong shaft 15 is in transmission fit with the conical gear set; the bevel gear set is in transmission fit with thesaw disc 2.

The bevel gear set comprises afirst bevel gear 8, a second bevel gear 3 and a gear shaft 4; as shown in fig. 2, the second bevel gear 3 is fixed to a side plate of thefront housing 14 via a gear shaft 4, anend cover 5 and a screw 6; the gear shaft 4 is in nested fit with the rotation center of thesaw disc 2 and synchronously rotates; the second bevel gear 3 is sleeved on the gear shaft 4; thefirst bevel gear 8 and the second bevel gear 3 are meshed with each other; the corresponding end of thelong shaft 15 is connected with the rotating center of thefirst bevel gear 8, so that the power output by the motor 18 can be transmitted to thesaw disc 2.

A positioning groove is formed in the end face, facing thelong shaft 15, of thefirst bevel gear 8; thelong shaft 15 is correspondingly embedded in the positioning groove; thelong shaft 15 and the coupler 17 are in the same inserting structure, so that the transmission is stable under the condition of compact integral structure, the disassembly is convenient, and the maintenance work is simplified.

The shaft end of thefirst bevel gear 8 is positioned in thefront shell 14 through the miniature bearing 9, thesleeve 10 and the deep groove ball bearing 11, so that the rotating stability is ensured; a deep groove ball bearing 11 is arranged on one side of the interior of thesleeve 10 close to therear shell 16; one side of the deep groove ball bearing 11, which is far away from thesaw disc 2, is provided with a shaftend retainer ring 12 and afelt ring 13, so that sealing can be realized, and the interior of therear shell 16 is prevented from being polluted.

The disassembly unit further comprises abaffle plate 1; thebaffle 1 is connected and arranged on the other side of thecylinder 10 opposite to therod 142; thebaffle 1 is an arc-shaped plate structure folded inwards, can rotate a certain angle, and can protect other external tissues in the operation process.

The use method of the medical saw disc mechanism comprises the following steps:

step one, the mechanism is inserted into a human body, therod piece 142 part of thefront shell 14 is inserted into atarget organ 30, and thebaffle plate 1 is attached to the outer wall of thetarget organ 30;

secondly, under the auxiliary guidance of the laparoscope, the motor 18 is started to drive thesaw disc 2 to rotate, the organ tissues between thesaw disc 2 and thebaffle plate 1 are cut, and thebaffle plate 1 protects the tissues except thetarget organ 30 from being cut by mistake in the process; thecover body 141 plays a role in opening the organ and opening up a space for the saw disc to work;

step three, after one side of the organ is cut, taking therod piece 142 as a rotation center, adjusting the organ area corresponding to thesaw disc 2, cutting the organ tissue in the same way, and finally dividing the target organ into a plurality of sections;

step four, shutting down the saw disc mechanism, withdrawing and placing the saw disc mechanism on the tool disc, clamping one end of the incised target organ by using instruments such as a nipper and the like, and respectively extracting the incised target organ out of the body;

and step five, after the operation is finished, separating the disassembling unit part of the saw disc mechanism, directly discarding the disassembling unit part into a waste box, and disinfecting the recycling unit part for the next use.

Here, taking a hysterectomy as an example, as shown in fig. 7, the method of use is: the mechanism is stretched into a micro wound of about 4 centimeters, therod piece 142 passes through the uterine cavity and penetrates through the uterine bottom for 1-2 cm to fix the cervix, and thebaffle plate 1 is fitted outside the uterus to protect the external tissues of the uterus from being cut by mistake and not damage the vaginal wall; thecover body 141 plays a role in opening the uterine cavity, protecting other tissues and guaranteeing the work of the saw disc; under the auxiliary guidance of the laparoscope, a motor 18 is started to drive thecircular saw disc 2 to rotate at a high speed, and the uterine cavity tissue between thesaw disc 2 and thebaffle 1 is cut; after one cutting is finished, the mechanism is rotated by taking therod piece 142 as the center, uterine cavity tissues in other areas are cut, and finally the target organ is divided into a plurality of valve forms; then the saw disc mechanism is closed and retracted to be placed on the tool disc, and the treatment is carried out after the operation; one end of the incised uterus is clamped by instruments such as a nipper and the like, so that the uterus can be drawn out of the body from the vagina; compared with the mode of taking out the crushed uterus through the abdomen, the operation time can be obviously shortened, and the residual broken tissues are not easy to remain; after the operation is completed, the disassembly unit part of the saw disc mechanism is separated and discarded into the waste box, the recovery unit part is disinfected, and the saw disc mechanism is recovered and recombined for next use, so that the operation cost is effectively saved.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.

Claims (5)

1. The utility model provides a medical saw set mechanism which characterized in that: comprises a disassembling unit and a recovering unit; the dismounting unit comprises a sleeve (10), a saw disc (2) and a front housing (14); one end of the sleeve (10) is correspondingly connected with the recovery unit; the saw disc (2) is arranged at one end of the sleeve (10) far away from the recovery unit; the recovery unit comprises a motor (18); the power output end of the motor (18) is connected with the rotating shaft of the saw disc (2) in a matching way; the front housing (14) includes a hood (141) and a lever (142); the cover body (141) is connected with the sleeve (10) and is arranged outside the saw disc (2) in a covering mode; one end of the rod piece (142) is connected with the cover body (141), and the other end of the rod piece extends towards the direction far away from the recovery unit; the dismounting unit further comprises a baffle (1); the baffle (1) is connected and arranged on the other side, opposite to the rod piece (142), of the sleeve (10); the baffle (1) is of an arc-shaped plate structure folded inwards, and keeps a cutting distance with the saw disc (2);

the use method of the medical saw disc mechanism comprises the following steps:

step one, the mechanism is stretched into a human body, a rod piece (142) of a front shell (14) is partially inserted into a target organ (30), and a baffle plate (1) is attached to the outer wall of the target organ (30);

secondly, under the auxiliary guidance of the laparoscope, a motor (18) is started to drive the saw disc (2) to rotate, the organ tissues between the saw disc (2) and the baffle (1) are cut, and the baffle (1) protects the tissues except the target organ (30) from being cut by mistake in the process; the cover body (141) plays a role in opening the opening of the organ and opening up a space for the operation of the saw disc;

after one side of the organ is cut, the rod piece (142) is used as a rotation center, the organ area corresponding to the saw disc (2) is adjusted, then the organ tissue is cut in the same way, and finally the target organ is divided into a plurality of valve forms;

step four, shutting down the saw disc mechanism, withdrawing and placing the saw disc mechanism on the tool disc, clamping one end of the incised target organ by using a nipper, and respectively extracting the incised target organ out of the body;

and step five, after the operation is finished, separating the disassembling unit part of the saw disc mechanism, discarding the disassembling unit part into a waste box, and disinfecting the recycling unit part for the next use.

2. The medical saw disc mechanism of claim 1, wherein: the recovery unit further comprises a rear housing (16), a coupling (17) and a long shaft (15); the motor (18), the coupling (17) and the long shaft (15) are arranged in the rear shell (16); the long shaft (15) is connected with the power output end of the motor (18) through a coupler (17); one end of the long shaft (15) far away from the motor (18) extends into the sleeve (10); the detaching unit includes a bevel gear set; the corresponding end of the long shaft (15) is in transmission fit with the conical gear set; the bevel gear set is in transmission fit with the saw disc (2).

3. The medical saw disc mechanism of claim 2, wherein: the bevel gear set comprises a first bevel gear (8), a second bevel gear (3) and a gear shaft (4); the gear shaft (4) is in nested fit with the rotation center of the saw disc (2) and synchronously rotates; the second bevel gear (3) is sleeved on the gear shaft (4); the first bevel gear (8) and the second bevel gear (3) are meshed with each other; the corresponding end of the long shaft (15) is connected with the rotating center of the first bevel gear (8).

4. The medical saw disc mechanism of claim 3, wherein: a positioning groove is formed in the end face, facing the long shaft (15), of the first conical gear (8); the long shaft (15) is correspondingly embedded in the positioning groove.

5. The medical saw disc mechanism of claim 2, wherein: a deep groove ball bearing (11) is arranged on one side, close to the rear shell (16), in the sleeve (10); and one side of the deep groove ball bearing (11) far away from the saw disc (2) is provided with a shaft end retainer ring (12) and a felt ring (13).

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