CN101879082A - A kind of forceps posterior cranial fossa retractor for children - Google Patents

Abstract

Translated fromChinese

本发明涉及医疗器械技术领域，具体涉及一种小儿钳式后颅凹牵开器。一种小儿钳式后颅凹牵开器，其特征在于其由右半钳和左半钳通过铰链销(2)连接成钳身(1)，钳身(1)的前部为钳臂(3)，钳臂(3)中部的底面呈弧形，钳臂(3)中部中间具有一曲臂机构(7)，钳臂(3)前端带牵开爪(4)，后部为钳柄(5)，钳柄(5)上设有锁紧机构(6)。本发明结构简单、使用方便，适于婴幼儿头皮和后颅凹的生理结构特点，将大大增强牵开器固定的稳定性，而且会扩大手术视野，减少了对头皮组织的损伤。

The invention relates to the technical field of medical instruments, in particular to a forceps type posterior cranial fossa retractor for children. A kind of pliers-type posterior cranial fossa retractor for children is characterized in that it is connected by a right half pliers and a left half pliers through a hinge pin (2) to form a pliers body (1), and the front part of the pliers body (1) is a pliers arm ( 3), the bottom surface of the middle part of the pliers arm (3) is arc-shaped, and there is a curved arm mechanism (7) in the middle part of the pliers arm (3). (5), the clamp handle (5) is provided with a locking mechanism (6). The invention is simple in structure and easy to use, and is suitable for the physiological structure characteristics of the infant's scalp and posterior cranial fossa, greatly enhances the stability of the retractor, expands the operating field of view, and reduces the damage to the scalp tissue.

Description

A kind of forceps-type occiput spreader for infants

Technical field

The present invention relates to technical field of medical instruments, be specifically related to a kind of forceps-type occiput spreader for infants.

Background technology:

Craniocerebral operation incision scalp and muscle separately all adopt pawl formula or hook-type to draw separately now, but children scalp is thin and the posterior cranial fossa physiological structure, and this causes existing occiput spreader not firm because of fixing in operation, throws off easily, make troubles and bother to operation, and increased tissue injury.

Summary of the invention:

For overcoming the deficiencies in the prior art, the invention provides a kind of forceps-type occiput spreader for infants.

The technical scheme that technical solution problem of the present invention is adopted is a kind of forceps-type occiput spreader for infants, connect into vice body by the right side half pincers and a left side half pincers by joint pin, the front portion of vice body is a tong arm, the bottom surface at tong arm middle part is curved, tong arm has the mechanism of cranking arm in the middle of the middle part, the tong arm front end has and retracts pawl, and the rear portion is provided with retaining mechanism for pincers handles, pincers handle.

Tong arm of the present invention has the mechanism of cranking arm, and the arc of tong arm and skull circular arc are more matched, and has increased contact area, will strengthen the fixed stability of retractor greatly, and can not disturb surgical field of view.

In one embodiment, the described mechanism of cranking arm is an articulation mechanism, is convenient to can make tong arm curved as long as apply downward force at the pincers handle in the operation.

In one embodiment, the described pawl that retracts is curved, can make the wild exposed area of art bigger, and the wherein preferred described pawl that retracts is blunt pawl, to reduce tissue injury.

In one embodiment, but describedly retract the height excuse skin thickness of pawl and change, wherein preferably retract the height of pawl less than 1cm.

In one embodiment, the rear end of described tong arm also has the fixture of other operated devices, and described fixture affixed and tong arm upper surface or lateral surface can be fixed various operated devices.For example: snakelike retractor, slurry shape retract plate, cold light source fiber waveguide beam, continue deep operated devices such as suction catheter and micro dissecting instrument.Its applied range not only can retract fixedly shallow layer tissue, and has multiple function and be convenient to the deep microsurgical procedure especially.

In one embodiment, described retaining mechanism is pulled and is locked reed by sector rack, strap wrenches tooth and forms, sector rack is connected on the pincers handle of a left side, band plate hands tooth plate is hinged on the pincers handle of the right side, and locking reed group is connected on the right pincers handle and can flexibly band plate hands tooth plate be engaged on the optional position of sector rack.

In one embodiment, the outside of described pincers handle is provided with some non-slip process.

The present invention is simple in structure, easy to use, is suitable for the physiological structure characteristics of infant scalp and posterior cranial fossa, will strengthen the fixed stability of retractor greatly, and can enlarge surgical field of view, has reduced the damage to scalp tissue.

Description of drawings:

Fig. 1 is the overall structure sketch map of forceps-type occiput spreader for infants one more excellent example.

The specific embodiment:

Below in conjunction with the drawings and specific embodiments, further illustrate the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.

As shown in Figure 1, a kind of forceps-type occiput spreader for infants of the present invention, connect intovice body 1 by the right side half pincers and a left side half pincers byjoint pin 2, the front portion ofvice body 1 is atong arm 3, the bottom surface attong arm 3 middle parts is curved, and tong arm has the mechanism of cranking arm 7 in the middle of the middle part, andtong arm 3 front ends retractpawl 4 for having, the rear portion is provided with retaining mechanism 6 forpincers handle 5, pincers handle.

Tong arm of the present invention has the mechanism of cranking arm, and the arc of tong arm and skull circular arc are more matched, and has increased contact area, will strengthen the fixed stability of retractor greatly, and can not disturb surgical field of view.

The described mechanism 7 of cranking arm is articulation mechanism 7, is convenient to can make tong arm curved as long as apply downward force at the pincers handle in the operation.

The describedpawl 4 that retracts is curved, can make the wild exposed area of art bigger, and the wherein preferred describedpawl 4 that retracts is blunt pawl, to reduce tissue injury.But describedly retract the height excuse skin thickness ofpawl 4 and change, wherein preferably retract the height ofpawl 4 less than 1cm.The rear end of describedtong arm 3 also has thefixture 8 of snakelike retractor.

The effect of retaining mechanism 6 is to retract edge of wound, expose and to be locked that this retracts fixation clamps after the surgical field of view.Retaining mechanism 6 pulls 6b bysector rack 6a, strap wrenches tooth and lockingreed 6c constitutes.Sector rack 6a is connected on thepincers handle 5a of a left side, and band platehands tooth plate 6b is hinged on thepincers handle 5b of the right side, and lockingreed 6c is connected in the optional position thatright pincers handle 5b went up and can flexibly band platehands tooth plate 6b be engaged on sector rack 6a.The profile of tooth ofsector rack 6a and band platehands tooth plate 6b can be made ratchet and ratchet shape respectively; left andright pincers handle 5a/5b can only be drawn close relatively and can not separate relatively; but pulling strapwrenches tooth plate 6b can make it overcome the coupling mechanism force of lockingreed 6c and take off withsector rack 6a tooth; left andright pincers handle 5a/5b can freely separate or draw close, thereby makes thepawl 4 that retracts oftong arm 3 front ends draw close or retract.This retaining mechanism 6 has the function that can automatically lock after retracting, reason is when the hands spy retracts fixation clamps thereby left and right pincers handle 5a/5b to be retractedpawl 4 when the shallow-layer soft tissue is retracted by drawing close relatively away from the position to make, band platehands tooth plate 6b can regulate the position of engagement automatically because of the active force thatclothes locking reed 6c is filled in the drive thathandle 5b is clamped on the right side, and stop hands to left and right pincers handle 5a/5b pinch active force the time, by the active force of lockingreed 6c withsector rack 6a engagement locking.Simultaneously, shallow layer tissue also makes left and right pincers handle 5a/5b tighten to the active force that retracts pawl 4.Thisretaining mechanism 5 has different characteristics than prior art, can automatically lock, and is still more convenient, and retaining mechanism that retaining mechanism of the prior art for example is made of fan-shaped frid and fishbolt or the like is applicable to this operation retractor too.

Scope of the present invention is not subjected to the restriction of described specific embodiments, and described embodiment also comprises the method and the component of functional equivalent only as the single example of illustrating various aspects of the present invention in the scope of the invention.In fact, except content as herein described, those skilled in the art can easily grasp multiple improvement of the present invention with reference to above description and accompanying drawing.Described improvement also falls within the scope of appended claims.

Claims (9)

Translated fromChinese

1.一种小儿钳式后颅凹牵开器，其特征在于其由右半钳和左半钳通过铰链销(2)连接成钳身(1)，钳身(1)的前部为钳臂(3)，钳臂(3)中部的底面呈弧形，钳臂(3)中部中间具有一曲臂机构(7)，钳臂(3)前端带牵开爪(4)，后部为钳柄(5)，钳柄(5)上设有锁紧机构(6)。1. A kind of forceps type posterior cranial fossa retractor for children is characterized in that it is connected into clamp body (1) by hinge pin (2) by right half clamp and left half clamp, and the front portion of clamp body (1) is clamp Arm (3), the bottom surface of the pincer arm (3) middle part is arc-shaped, has a curved arm mechanism (7) in the middle of the pincer arm (3) middle part, the pincer arm (3) front end band retracts claw (4), and the rear part is The pincer handle (5) is provided with a locking mechanism (6) on the pincer handle (5).2.如权利要求1所述的小儿钳式后颅凹牵开器，其特征在于所述曲臂机构(7)为关节机构。2. The infantile forceps type posterior cranial fossa retractor as claimed in claim 1, characterized in that the crank arm mechanism (7) is a joint mechanism.3.如权利要求1所述的小儿钳式后颅凹牵开器，其特征在于所述牵开爪(4)呈弧形。3. The children's pincer type posterior cranial fossa retractor as claimed in claim 1, characterized in that the retraction claw (4) is arc-shaped.4.如权利要求3所述的小儿钳式后颅凹牵开器，其特征在于所述牵开爪(4)为钝爪。4. The infantile forceps type posterior cranial fossa retractor as claimed in claim 3, characterized in that said retracting claw (4) is a blunt claw.5.如权利要求4所述的小儿钳式后颅凹牵开器，其特征在于所述牵开爪(4)的高度小于1cm。5. The children's pincer type posterior cranial fossa retractor as claimed in claim 4, characterized in that the height of the retracting claw (4) is less than 1 cm.6.如权利要求1所述的小儿钳式后颅凹牵开器，其特征在于所述钳臂(3)的后端还具有其他操作器件的固定装置(8)，所述固定装置(8)固接于钳臂(3)上端面或外侧面。6. children's forceps type posterior cranial fossa retractor as claimed in claim 1, is characterized in that the rear end of described forceps arm (3) also has the fixing device (8) of other operating devices, and described fixing device (8 ) is fixedly connected to the upper end surface or the outer surface of the clamp arm (3).7.如权利要求6所述的小儿钳式后颅凹牵开器，其特征在于所述其他操作器件可为蛇形牵开器、浆形牵开板、冷光源纤维导光束、持续吸引管以及显微解剖器械。7. The pediatric clamp-type posterior cranial fossa retractor as claimed in claim 6, characterized in that said other operating devices can be serpentine retractors, paddle-shaped retractor plates, cold light source fiber guide beams, continuous suction tubes and microdissection instruments.8.如权利要求1所述的小儿钳式后颅凹牵开器，其特征在于所述锁紧机构(6)由扇形齿板(6a)、带扳手齿扳(6b)和锁紧簧片(6c)构成，扇形齿板(6a)固连在左钳柄(4a)上，带板手齿板(6b)铰支在右钳柄(5b)上，锁紧簧片(6c)固连在右钳柄(5b)上且可弹性地将带板手齿板(6b)啮合在扇形齿板(6a)的任意位置。8. The infantile pliers-type posterior cranial fossa retractor as claimed in claim 1, characterized in that the locking mechanism (6) consists of a fan-shaped tooth plate (6a), a band wrench tooth puller (6b) and a locking reed (6c), the fan-shaped tooth plate (6a) is fixed on the left pliers handle (4a), the wrench tooth plate (6b) is hinged on the right pliers handle (5b), and the locking reed (6c) is fixed On the right pliers handle (5b), the band wrench tooth plate (6b) can be elastically engaged at any position of the fan-shaped tooth plate (6a).9.如权利要求1所述的小儿钳式后颅凹牵开器，其特征在于所述钳柄(5)的外侧设有若干防滑突起。9. The pediatric pliers-type posterior cranial fossa retractor as claimed in claim 1, characterized in that a number of anti-slip protrusions are provided on the outside of the pliers handle (5).

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